Episode 36 - The attention given to the drama surrounding Bulma's sadness is good. Despite what the series tends to portray their relationship as, especially post-Freeza Arc, it's moments like this that show you how much Yamucha meant to Bulma. Chichi giving her entire focus to Gohan rather than her husband who actually died for a while can seem pretty obtuse of her, but it's understandable when considering one is a grown man who's dedicated his life to fighting whereas the other is a boy just getting out of his formative years, not to mention the typical maternal psychology of putting the child's safety first.
It's also good how this stands as the only arc after the Red Ribbon Army Arc outside of the Piccolo Daimao Arc to directly lead from one arc to the next rather than going through a timeskip, something the other arcs of Z would be fond of doing. Another aspect of continuity that's good here is how they altered Bulma's reaction and knowledge of who died to fit the filler they added with Baba.
During the imagining of the Namekians, we see one with a moustache. I won't say this is an inconsistency though when considering it was just Yajirobe imagining them.
Also, we see Roshi lamenting on how he was unable to do anything. Foreshadowing for his secret training motivation?
Episode 37 - The filler of Goku being in pain from getting bandages put on him is a nice addition as it lines up with how sensitive his damaged body was even prior to fighting Oozaru Vegeta to the point Yajirobe tapping his back was enough to be intense pain. We see Karin fly for the first time. Makes sense, considering he's an 800+ year old martial arts master and a teenage girl could learn to fly with pretty basic tutelage.
Mr. Popo's carpet of course, raises a potential plot hole with why he didn't use it to transport Goku. There are some explanations you could come up with such as it having been so long since he used it that it was an oversight on Popo's part or his carpet only works by video game fast travel rules in that he can only get there instantly if he's visited it before, but these explanations are still a bit contrived; even if the anime supports the former somewhat with him relying on a machine to teleport Goku during training. Maybe he was just busy making toast.
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The payoff to Piccolo and Kami speaking Namekian at the 23rd TB is good and shows one of the strong points of the Saiyan/Freeza Arcs in how they tied up many past mysteries to build a compelling premise. On that subject, the episode also establishes that Piccolo Daimao's evil was the result of being exposed to humanity's darker nature, which greatly informs his motivations retroactively and makes him compelling in that he wanted to dish out what he perceived as punishment for humanity.
Bulma accidentally activating the toilet and bed is a good scene not just for the comedy, but in how it points out how different languages can be. Even on Earth, a word can mean something completely different in two languages.
Episode 38 - Gohan standing up to Chichi not only another of the traits supporting that thing I said about Gohan and Piccolo, but shows Gohan isn't completely submissive to his mother's whims. It shows his later decisions of dedicating his time to studying after the Cell Game isn't him being pressured by Chichi as many like to theorise. It also says a lot that Bulma is able to become fluent in basic Namekian in a few days. Even considering her technical intelligence, it's pretty difficult to be a genius across all fields.
Also, we see what could be a cameo of Konkichi who appeared in the filler leading up to the 22nd TB.
Episode 39 - The image training shows Gohan as using an uncharged version of the Makankosappo. It makes sense Piccolo would've taught him it and that Gohan can only use a weaker version and, whilst not exactly canon to the anime or manga, Future Gohan is shown to use it in almost all of his video game appearances.
I don't find the addition of Kami's ship having a laser beam to be good. One of the things that makes the DB' universe's ships stand out and be commended for is that they don't have artillery and that this makes sense when most of the races aboard them are capable of using stronger attacks than the ship itself should dish out, something that makes combat in the series fairly consistent when it comes to terrain. I guess you could assume Bulma or her dad installed one though. What I find a bigger issue in is that she is able to deliver the order to fire back in Japanese (or Earthling..ese I guess) rather than Namekian despite it being shown she still had to say Piccolo to make the ship function.
The alien children being very humanoid both in appearance and cutlery is fairly disappointing. When you have a fantastical Earth such as DB where dinosaurs still exist and talking animals are commonplace, the sky's the limit when it comes to creative alien designs. Saiyans at least had their tails, transformations and primitive society to make them unique whereas the Tsufurians were suggested to be very short and were highly technologically advanced. Whilst these kids possess some advanced technology, they're basically just your stock sci-fi scavengers.
I'd also mention how it makes no sense for Bulma and co. to see a reflection of their ships when nowhere near a light source, though I'd be fine chalking it up to this universe having some different physics to ours and the ship's artificial light serving such a role.
Despite my complaints, I did find it good how it created an adventure aspect hearkening back to the original anime's arcs and one that's fitting when exploring the unknowns of space. Also, I have to wonder if Bulma's scantily clad outfit remaining her default for the conflict in this episode is a reference to Ripley's attire in the climax of Alien.