Goku didn't even consider using Kaioken x3 until it was clear he was outmatched against Vegeta, and he wasn't sure his body would handle it. Meanwhile he is immediately confident that he can handle the Kaioken x10 after testing his strength, so I think he can handle it better than the x3 back in...
I would think so. Vegeta on Namek considered going from 18,000 to 24,000 to be a vast power up. The gap between Trunks and Goku probably wasn't that large, but the precedent is there for a relatively small multiplier to one's power to be considered a substantial increase.
Was it the damage that caused him to run out of battery? As far as I can see, it's not stated, but it makes sense so I won't outright deny it. Regardless, I still think Namu could outlast Metallic's batteries even taking that into account, though there is potential for Metallic to win if Namu...
Team 2 wins handily imo. Goku alone is a match for Roshi, especially with his electric attack banned, and Namu can definitely outlast Metallic's batteries, considering Goku didn't even go all out against Metallic. After Metallic runs out of power, Roshi won't stand a chance against Goku and Namu...
Goku definitely had a decent edge over Roshi. The Kamehameha clash could be explained as Roshi having superior ki control, but Roshi seemed outmatched everywhere else.
Yes, Pakl, I see your point that Goku had only recently revealed SSj2 in the manga. Unfortunately, it seems you forgot to realize that the Goku in the 2nd Broly movie is the same as Boo arc Goku, meaning he was a SSj2.
@GreatSaiyaman123 Just because he unlocked his potential while doing the mind control spell doesn't necessarily mean they're directly connected. Babidi had to do something additional in order to unlock his potential, rather than just letting the mind control spell do it in of itself. Unless what...
Chapter: 456 (DBZ 262), P4.3
Context: as Babidi takes control of Vegeta
Babidi: “While I’m at it, I’ll draw out his hidden power to beyond [his? its?] limits!”
This implies that the potential unlock is separate from the mind control spell.