Goku was really using an invisible Kaioken x10 vs true form Freeza

[ahill1]

So @freezamite was right after all :?

 

[freezamite]

No, of course Goku wasn't using an invisible KKx10! In those pages the KKx10 was clearly drawn!!!
Astonishing KKx10 aura:
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-6.html

Ultra wide KKx10 aura:
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-8.html

KKx10 aura, times 10 the regular aura size:
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-14.html

Ultra mega KKx10 aura:
http://mangalife.org/read-online/Dragon-Ball-chapter-119-index-2-page-1.html

 

[Evil Vegeta]

Lol, Invisible Kaio-Ken.

 

[withheldforprivacy]

Lol, thanks for finding this page. I'd been looking for it.
I think we should gather all the pages of that kind to a specialized thread.

 

[Pyro]

I remember that. Didn't that come out years ago during when MFG was still around? Or maybe a little later...

 

[freezamite]

Lol, Invisible Kaio-Ken.

Hey, it's easy!!!
Where's the KK aura in those pages?
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-6.html
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-8.html
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-14.html
http://mangalife.org/read-online/Dragon-Ball-chapter-119-index-2-page-1.html

Because besides the context of those scenes clearly making the use of the KKx10 mandatory there, in one page Kaito is directly stating that Goku is using the KKx10! So, where is the KKx10 aura in those pages? Care to tell me if it's really there? Because I surely can't see it...

 

[p123]

AHHHHHH got emmmm!!!

 

[Evil Vegeta]

He wasn't using Kaio-Ken x10 in any of those except the last. In all of the other images, he was taking hits. We clearly see on Earth that he's knocked out of Kaio-Ken when he gets hit.

And we see him knocked out of it altogether when Freeza kicked him in the face. Nice to see you omit that part.

Anyway, this is exactly why this theory makes no sense:

The power within Goku is what scares him. This is the same Goku that wasn't sure if he'd be a match for 3rd Form Freeza. After realizing he's acquired amazing power, he's more confident in taking on Freeza. The emphasis is on Goku's normal power. Nothing to do with the Kaio-Ken.

Krillin knows when Goku is amplifying his power through the Kaio-Ken. None of that is taking place here. Goku powered-up to the point where his Chi changed completely. This is what often happens when someone reaches an entirely new level of power.

Vegeta clearly stated that Goku has surpassed his limits and became an entirely different person than he was before. Do you not see how meaningless these quotes are if Goku has some type of permanent Kaio-Ken on? The entire point of this scene is to show that Goku has healed and reached a different plateau.

Freeza said Goku was hiding a lot of power and Goku basically admitted that Freeza was right. Therefore, the idea of him using Kaio-Ken x10 the entire time is inaccurate. That only happened when Freeza unleashed 50% of his power. The Invisible Kaio-Ken is a terrible theory.

 

[p123]

EV do not suffer fools gladly my friend. Work with me and make this forum great again. He will have to grow a brain or he will be discarded like trash.

 

[Boo Brand Milk]

The whole kaioken with Frieza thing came across as they forgot all about and retroactively wedged it into the plot.

 

[freezamite]

He wasn't using Kaio-Ken x10 in any of those except the last. In all of the other images, he was taking hits. We clearly see on Earth that he's knocked out of Kaio-Ken when he gets hit.

No, he isn't. At least, while he takes the hit, he is still clearly using the KK:
http://mangalife.org/read-online/Dragon-Ball-chapter-34-index-2-page-14.html

Those chapters were coloured in the original series, that's why the KK aura isn't drawn as much as it normally would, but it's pretty obvious by Goku's colours that he is still using his KK when Vegeta kicks him and even after that. And that's what's logic, if Vegeta kicked Goku with enough strength to beat him while using KKx2, and Goku couldn't use the KK while being kicked, that would mean he would be insta-killed by Vegeta. Luckily that wasn't the case for Goku.

And we see him knocked out of it altogether when Freeza kicked him in the face. Nice to see you omit that part.

I omitted that page not because I think that was a KK aura (it's clearly a flying aura, unless you imply that Freezer is also able to use the KK in the following page, because he has an aura too: http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-11.html), but because the pages I posted doesn't make any sense if the KKx10 isn't active (heck, even Kaito says it's activated) and the aura is clearly not drawn in there. So, invisible aura.

Anyway, this is exactly why this theory makes no sense:

The power within Goku is what scares him. This is the same Goku that wasn't sure if he'd be a match for 3rd Form Freeza. After realizing he's acquired amazing power, he's more confident in taking on Freeza. The emphasis is on Goku's normal power. Nothing to do with the Kaio-Ken.

Goku always took into account the KK when talking about his power, an example being this:
http://mangalife.org/read-online/Dragon-Ball-chapter-90-index-2-page-13.html
And furthermore, it was implied that the physically stronger Goku's body was, the higher levels of KK he could reach:

Chapter: 270 (DBZ 76), P11.1-4
Context: Goku has turned the gravity back down to 1g.
Goku: “Hwoo!!! I…I feel so light… …It’s like I’m not even here!!! Hoo hoo hoo!!! I’m light, I’m light! And strong, strong! Like this, I can definitely withstand about a 10-fold Kaio-Ken!”

So with all of that on mind, what Goku says makes totally sense. The zenkay reinforced his body which meant that, besides him being stronger, he could reach even higher levels of KK (10x was the maximum when he arrived at Namek). Why would Goku not take into account the KK when considering the strength he could achieve?

Krillin knows when Goku is amplifying his power through the Kaio-Ken. None of that is taking place here. Goku powered-up to the point where his Chi changed completely. This is what often happens when someone reaches an entirely new level of power.

Going from 90k to 300k is an entirely new level of power. It's like various times an entirely new level of power in fact.

Vegeta clearly stated that Goku has surpassed his limits and became an entirely different person than he was before. Do you not see how meaningless these quotes are if Goku has some type of permanent Kaio-Ken on? The entire point of this scene is to show that Goku has healed and reached a different plateau.

You mean the same Vegeta that, while being multiple times stronger than Goku, was flabergasted at Goku's performance in front of Reecoome?
Those quotes have a meaning, to hype the fight, but like when Goku was fighting against the special forces with a fraction of Vegeta's power, they have to be taken into context.
What makes this any different than that exactly? Goku was stronger, Vegeta perceived that, with or without the KK.

Freeza said Goku was hiding a lot of power and Goku basically admitted that Freeza was right. Therefore, the idea of him using Kaio-Ken x10 the entire time is inaccurate. That only happened when Freeza unleashed 50% of his power. The Invisible Kaio-Ken is a terrible theory.

Goku could reach the KKx20 in case of need, he didn't have any intention to go that far, but its obvious that he could reach KKx11 or KKx12 with not much problems.
And besides, the invisible KK is there even if we accept that Goku only activates the KK after Freezer uses his 50%. Every single image I posted was after Freezer used his 50%, and in every single image Goku had to have the KKx10 activated because otherwise he would've been one-shoted by Freezer.

So, the invisible KK is there no matter what. It being activated after Freezer's 50% or before is the discussion, but it's obvious that there's no KK aura in here and the KKx10 is being used:
http://mangalife.org/read-online/Dragon ... age-6.html
http://mangalife.org/read-online/Dragon ... age-8.html
http://mangalife.org/read-online/Dragon ... ge-14.html
http://mangalife.org/read-online/Dragon ... age-1.html

The whole kaioken with Frieza thing came across as they forgot all about and retroactively wedged it into the plot.

Yes, that or Toriyama simply did want to hide the use of the KK to make for a more dramatic effect. If it had been made clear that Goku had been fighting with the KK since the very beginning, then his entrance and the first rounds of the fight wouldn't have the same impact to the reader.
In this way, it really seems that Goku can fight evenly against Freezer, then we latter learn that he was already using the KKx10 which makes the impact of that chapter much higher.
All in all, I'm not a fan of that decision, because I think that the internal coherency of the series should prevail over the dramatic effect of a scene or chapter.

 

[p123]

That's just a flight aura! Freeza has the same aura! Doh!

 

[Evil Vegeta]

No, he isn't. At least, while he takes the hit, he is still clearly using the KK

He dropped out of the form. The Kaio-Ken aura disappeared for a reason. You're saying he's clearly using it when it vanished.

He loses the aura there as well. Goku doesn't keep the Kaio-Ken aura when he takes attacks. That much is shown.

Those chapters were coloured in the original series, that's why the KK aura isn't drawn as much as it normally would, but it's pretty obvious by Goku's colours that he is still using his KK when Vegeta kicks him and even after that. And that's what's logic, if Vegeta kicked Goku with enough strength to beat him while using KKx2, and Goku couldn't use the KK while being kicked, that would mean he would be insta-killed by Vegeta. Luckily that wasn't the case for Goku.

Again, he knocked him out of it. Kaio-Ken is used in bursts. It's not something he keeps on constantly.

I omitted that page not because I think that was a KK aura (it's clearly a flying aura, unless you imply that Freezer is also able to use the KK in the following page, because he has an aura too: http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-11.html), but because the pages I posted doesn't make any sense if the KKx10 isn't active (heck, even Kaito says it's activated) and the aura is clearly not drawn in there. So, invisible aura.

Nope. It's a Kaio-Ken aura. And since when was similar shaped auras an indication that they were the same? Shall I show Piccolo in the Cell saga with his Super Saiyan like aura when he went to full-power? Auras change. You're basically saying AT drew Goku with a flight aura even though he would've been using the Kaio-Ken right there. That makes 0 sense.

There is no invisible aura. He's being knocked around by Freeza, so the aura isn't shown.

Goku always took into account the KK when talking about his power, an example being this

That has nothing to do with the power gushing out of Goku, which is a direct statement. Kaio-Ken is a technique. Everything Goku is talking about is his own power surpassing his limits to the point where it scares him. Kaio-Ken isn't apart of the context.

And furthermore, it was implied that the physically stronger Goku's body was, the higher levels of KK he could reach

And despite how strong he got, Kaio-Ken x10 was still his limit. That's the highest level he used before jumping to Kaio-Ken x20.

So with all of that on mind, what Goku says makes totally sense. The zenkay reinforced his body which meant that, besides him being stronger, he could reach even higher levels of KK (10x was the maximum when he arrived at Namek). Why would Goku not take into account the KK when considering the strength he could achieve?

Lol, that's not accurate. Goku's maximum was the Kaio-Ken x10. That's the only level he used before pushing his body to use a 20x increase of it. If 90k Goku thinks he can handle Kaio-Ken x10 and powered-up Goku doesn't go beyond that while fighting Freeza, it means the emphasis is entirely on Goku's natural power. He only used the Kaio-Ken x10 when he needed to keep up with 50% Freeza. That's the power he was trying to hide from Freeza, clearly.

Going from 90k to 300k is an entirely new level of power. It's like various times an entirely new level of power in fact.

No, it isn't. Not when his power is trash to guys that easily got overpowered by Freeza already. The point of the scene is to show that Base Goku was the strongest one there. The Kaio-Ken transformation just made him even stronger than the others. A level of 300k is absolute garbage and makes Goku into a total weakling.

You mean the same Vegeta that, while being multiple times stronger than Goku, was flabergasted at Goku's performance in front of Reecoome?

Goku was a weakling the last time he saw him and he reached a level where he could stomp the Ginyu with ease. Everyone is obviously shocked at his progress. Vegeta was way above a million and a Goku that surpassed his natural limits was above even that. That's what's being commented on: his limits. Kaio-Ken is mentioned nowhere. It's something you're adding to the story.

Those quotes have a meaning, to hype the fight, but like when Goku was fighting against the special forces with a fraction of Vegeta's power, they have to be taken into context.

Goku raised his power whenever he attacked the Ginyu Force. That power was also way higher than Vegeta's at that point. All of this is stated.

What makes this any different than that exactly? Goku was stronger, Vegeta perceived that, with or without the KK.

It means Base Goku was already beyond Vegeta before using the Kaio-Ken. That's what surpassing his limits means.

Goku could reach the KKx20 in case of need, he didn't have any intention to go that far, but its obvious that he could reach KKx11 or KKx12 with not much problems.

Goku wasn't even sure that he could tap into the Kaio-Ken x20. It was a last resort he thought of when Freeza was whooping his ass. It also isn't obvious he could use a Kaio-Ken x12 at all. If that were the case, why didn't he use any level above Kaio-Ken x10 when Freeza was dominating him? Because he most likely couldn't, or we would've been told that he was capable of using it. Since this isn't mentioned in the narrative, this is all an assumption.

And besides, the invisible KK is there even if we accept that Goku only activates the KK after Freezer uses his 50%. Every single image I posted was after Freezer used his 50%, and in every single image Goku had to have the KKx10 activated because otherwise he would've been one-shoted by Freezer.

There is no invisible Kaio-Ken. Freeza was stomping Goku in all of those images. That's why there's no aura up.

And the idea that he would've been one-shotted is incorrect. Freeza admitted that he was playing around and didn't want to end the battle too quickly. When Goku's Chi was stated to be going down after using the Kaio-Ken x20, Freeza was still able to attack him without outright finishing him.

Goku's Chi went down after using the Kaio-Ken x20.

There you have it. A pissed off Freeza attacked a Goku that was continuing to lose power and didn't one-shot him.

So the idea that he had to have a Kaio-Ken x10 active to not get defeated in a single attack is incorrect.

So, the invisible KK is there no matter what. It being activated after Freezer's 50% or before is the discussion, but it's obvious that there's no KK aura in here and the KKx10 is being used

The Invisible Kaio-Ken doesn't exist.

 

[sei'taer]

I remember that. Didn't that come out years ago during when MFG was still around? Or maybe a little later...

I think I first saw it on pojo during our wonderful argument about inconsistent kaioken aura's

 

[Papasmurf]

The edit was around for years before that, pretty sure.

 

[Super Neko Majin Z]

Goku's feats against 50% Frieza are useless here. The difference between Goku and 50% Frieza's base strengths are exactly the same for the official levels and Freezamite's; 20 times. (Technically it should be more than 20x since Frieza damn near tanked a Kamehameha from someone supposedly equal to him, but that's a debate for another time.)

With that said, Goku wasn't using the Kaio-Ken. By official levels, it took more than a 10 times base power boost for Goku's maximum Kaio-Ken to go from x4 to x10. There's just no way it can go from x10 to x20 in less than a 4x boost like you believe. I also don't think Goku would be able to maintain half his maximum Kaio-Ken for anywhere near that long without a lot more strain than he was showing.

 

[Let's Go Fearless!]

So Goku was using Kk10x all the time? lol.

 

[freezamite]

No, he isn't. At least, while he takes the hit, he is still clearly using the KK

He dropped out of the form. The Kaio-Ken aura disappeared for a reason. You're saying he's clearly using it when it vanished.

He loses the aura there as well. Goku doesn't keep the Kaio-Ken aura when he takes attacks. That much is shown.

No, he clearly has the aura when the attack impacts him. Even in those images you've used, Goku only deactivates the KK AFTER the attack has impacted him, not while the attack is impacting him like you argue.

Besides, Goku's mastering of the KK in the saiyan saga was much, much lower than in the Namek saga, as it was related to Goku's physical strength.

Again, he knocked him out of it. Kaio-Ken is used in bursts. It's not something he keeps on constantly.

KK is used how Goku feels it has to be used. Against Vegeta Goku admitted that he couldn't abuse the KK when Krilin told him why he didn't fight with the KK the whole time.
When Goku arrived at Namek he felt convinced he could reach the KKx10 because of how strong he was, so it's only logical than a Goku that's multiple times stronger could do the same KKx10 for much more extended periods of times.
Anyway, it's not arguable that Goku was using the KKx10, Kaito told us that was the case.

Nope. It's a Kaio-Ken aura. And since when was similar shaped auras an indication that they were the same? Shall I show Piccolo in the Cell saga with his Super Saiyan like aura when he went to full-power? Auras change. You're basically saying AT drew Goku with a flight aura even though he would've been using the Kaio-Ken right there. That makes 0 sense.

It's a flying aura because:
1. It only appears when Goku is flying. The KK aura is always drawn, even if Goku is standing still.
2. Goku's eyes are completely black, the KK Goku has always white eyes.
3. Goku is using the KK right there, in the page right after that, and in the page before that. Look, the series where someone can multiply his power by 10 and still not make a difference is DBS, in the original DB manga what you imply is impossible. If 50% Freezer was able to defeat KKx10 Goku, that means that Goku had to have his KKx10 activated the whole time, otherwise he would've been insta-killed by Freezer.

And despite how strong he got, Kaio-Ken x10 was still his limit. That's the highest level he used before jumping to Kaio-Ken x20.

Which, by definition, means that it wasn't his limit. From KKx10 to KKx20 there are 9 levels of KK possible for Goku, and by how he was speaking and the fact that at 90.000 he could already perform a KKx10, it's obvious than a KKx11 or a KKx12 would've been completely possible.
It's just that Freezer had such an incredibly huge boost in power that any KK lower than KKx20 became meaningless (and even the KKx20 was meaningless in the end).

Goku's maximum was the Kaio-Ken x10. That's the only level he used before pushing his body to use a 20x increase of it. If 90k Goku thinks he can handle Kaio-Ken x10 and powered-up Goku doesn't go beyond that while fighting Freeza, it means the emphasis is entirely on Goku's natural power.

No, Goku's "maximum" (maximum in terms of being plausibly usable in a fight, like the KKx2 was when he fought the saiyans) was the KKx10 WHEN HE ARRIVED AT NAMEK (with a power of 90.000). When he fought against Freezer he did it with a KKx10 and spoke as if he could increase his power much more, which means that he was aware he could reach further levels of KK.
It just happened that when Freezer got "serious", instead of the usual 10-20% strength increase seen in the series, he multiplied his power by two (a 100% strength increase) which completely broke Goku's expectations and of course forced him to use the highest level of KK he could reach at that point, which was KKx20.

He only used the Kaio-Ken x10 when he needed to keep up with 50% Freeza. That's the power he was trying to hide from Freeza, clearly.

That's not Dragon Ball Super. So, according to you, Freezer hit a Goku that wasn't using the KKx10 with a strength that surpassed that of a KKx10 and Goku survived?
That contradicts absolutely every single fight in the series. If Goku didn't had his KKx10 activated when Freezer powered up to 50%, he would've been insta-killed!

Not when his power is trash to guys that easily got overpowered by Freeza already.

Goku already entered the scene with the KKx10 activated, so 300k was not the strength they were speaking about (that may explain why they felt Goku's ki was DIFFERENT. Not bigger, but different).

The point of the scene is to show that Base Goku was the strongest one there.

And the point of Kaito saying that Goku was already using the KKx10 was to show that Goku didn't have as much room for improvement as the reader may have assumed until that point.

Goku was a weakling the last time he saw him and he reached a level where he could stomp the Ginyu with ease. Everyone is obviously shocked at his progress.

No, Vegeta wasn't impressed at Goku's improvement alone. Vegeta was even wondering if Goku had become the SSJ which meant that he was impressed by Goku's performance. And that was right, at that moment Vegeta wasn't aware of how strong he had become. Context matters.

Goku raised his power whenever he attacked the Ginyu Force. That power was also way higher than Vegeta's at that point. All of this is stated.

No, that power was statedly much lower than Vegeta's (the increased one). Goku was stated to be at 90k, and he was stated to use 60k against the Ginyu force. Vegeta already was far above 100k at that point as it was latter proven when he fought Freezer's weakest form.

Goku wasn't even sure that he could tap into the Kaio-Ken x20. It was a last resort he thought of when Freeza was whooping his ass. It also isn't obvious he could use a Kaio-Ken x12 at all. If that were the case, why didn't he use any level above Kaio-Ken x10 when Freeza was dominating him?

Because it would've been pointless? The main reason the KKx20 almost worked was that it took Freezer by surprise. Using the KKx12 or even the KKx15 while Freezer was so overwhelmingly strong would have only been worse for Goku:
1. For one part, the surprise factor behind the sudden KKx20 activation would've been diminished. Freezer didn't expect Goku to multiply his power by two, on the other hand, if Goku had been rising his KK progressively the KKx20 activation wouldn't have had the impact it had.

2. Higher levels of KK means higher levels of damage to the body so that means that Goku would've wasted more energy. Freezer was already controlling the strength of his hits to play with KKx10 Goku, in front of someone that surpassed him by that much, a KKx11 or KKx12 would've meant nothing (Freezer wasn't one-hit killing Goku ON PURPOSE) and would've weakened Goku even more than he already was for no apparent purpose.

There is no invisible Kaio-Ken. Freeza was stomping Goku in all of those images. That's why there's no aura up.

There had to be KK, otherwise those hits would've killed Goku instantly. Furthermore, you have a page where kaito is explicitly saying that Goku is using the KK, and Goku is drawn without a KK aura!
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-14.html

Freeza admitted that he was playing around and didn't want to end the battle too quickly. When Goku's Chi was stated to be going down after using the Kaio-Ken x20, Freeza was still able to attack him without outright finishing him.

Yes, but Freezer knew nothing about the KK. Freezer could adapt his power to what Goku had been showing to him, but according to you, Freezer's hits were strong enough to defeat Goku's KKx10 and still couldn't kill Goku while he wasn't using the KKx10!
That's why it doesn't make sense for the KKx10 to be activated only in a couple of panels. Freezer was able to adapt to it, which means that it wasn't a "sudden activation", it was activated since the beginning and that's how Freezer managed to not kill Goku.

There you have it. A pissed off Freeza attacked a Goku that was continuing to lose power and didn't one-shot him.

So what? Goku was visibly tired there, it was obvious that his power had decreased even if you couldn't perceive Ki.
What you're saying is different. You're saying that here Freezer is fighting against non KKx10 Goku:
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-6.html
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-8.html
Then Goku suddenly activated the KKx10, but Freezer could magically anticipate that even without looking (and of course, without being able to perceive Kis) and he could modulate his strength fast enough to react to it:
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-10.html
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-11.html

By the way, it's also a really weird KK aura, because Goku's eyes are clearly black while in any other KK aura his eyes are white unless the image was too small to draw them like that (which is not the case for this image, which is a panel that takes 1/3rd of the page with a big Goku in it). And it's an aura that casually only appears when Goku is flying, what a coincidence!

Then, according to you Freezer proceeded to reduce his power to 1/10th in the next page because Goku was no longer using the KKx10 here even when Kaito is saying that Goku is using it:
http://mangalife.org/read-online/Dragon-Ball-chapter-118-index-2-page-14.html

There is no invisible aura. He's being knocked around by Freeza, so the aura isn't shown.

But you have failed to provide a single instance of Goku using the KK and having his aura disappear WHILE being hit.
I mean, the only examples we have are this, where Goku is clearly using the KK not only while Vegeta is kicking him, but even in the panel after that:
http://mangalife.org/read-online/Dragon-Ball-chapter-34-index-2-page-14.html

And this:
http://mangalife.org/read-online/Dragon-Ball-chapter-35-index-2-page-20.html

Where Goku is clearly using the KK when Vegeta's Ki blast scratches him (that's how he manages to partially dodge the attack). In both cases Goku only deactivates the KK AFTER Vegeta's attacks stop, not while receiving them, because if those attacks were strong enough to surpass Goku's KK strength, they would without any doubt be fatal for a Goku that isn't using the KK.

(Technically it should be more than 20x since Frieza damn near tanked a Kamehameha from someone supposedly equal to him, but that's a debate for another time.)

Well, you have to take into account that when Goku activated the KKx20 he had already lost some strength because of Freezer's beating, which would explain why 50% Freezer was that superior to KKx20 Goku even when we both have them at similar levels theoretically speaking.

By official levels, it took more than a 10 times base power boost for Goku's maximum Kaio-Ken to go from x4 to x10.

Mmmm, I don't think that's right. I mean, when Goku was in the earth, the maximum level of KK he could realistically endure was the KKx2. He reached the KKx4 for an instant and that completely destroyed his body, I don't think that when Goku said he could reach the KKx10 when he arrived at Namek he meant he could reach it in the same way he reached the KKx4 back in the earth.
I see it as Goku being able to use the KKx10 like he used the KKx2 when he fought the saiyans, in short bursts when needed.

There's just no way it can go from x10 to x20 in less than a 4x boost like you believe.

Well, technically speaking, the jump from KKx4 to KKx10 is bigger than the jump from KKx10 to KKx20. But as I say, when Goku said he could use the KKx10 when he arrived at Namek with 90k I think he meant he could effectively use it in a fight, not in the sense of "using it for less than a second and ending completely destroyed" like when he used the KKx4 against Vegeta.

I also don't think Goku would be able to maintain half his maximum Kaio-Ken for anywhere near that long without a lot more strain than he was showing.

If you compare the toll it took to it's body, the KKx20 was more like the KKx3 than the KKx4 in the earth. The KKx4 was used only for an instant and left Goku totally destroyed. In fact, even the KKx3 damaged Goku's body more than the KKx20 in Namek (with the KKx3 Goku was only able to land a few hits on Vegeta, while he was able to fire a massively strong Kame Hame when using the KKx20, and afterwards he still was in a better condition than when he used the KKx3 back in the earth).

 

[xmysticgohanx]

Freezamite might have a point

 

[sei'taer]

The kaio-ken aura is so inconsistent in the furiza fight. Unless you want to argue that goku only uses the kaio-ken to fly towards furiza but rarely to ever attack him, you just have to accept the aura was purposefully obfuscated to hid the fact that goku was already using it.

There's a reason we've argued goku's base power for a decade.