As someone who has absolutely zero clue what any lore or characters are from Dragon Ball, I was completley lost as to the story or characters. But that's ok, because this game obviously wasn't meant for me. So what I could judge it on, I found fairly decent.
First the artwork is very good, maybe not the best, and there are some times where it is flat out lacking, most specifically the backgrounds. This is a shame because the characters in the game, well, the female characters at least, are all sublime. Seriously the art style on Android and the angel are top notch. Unfortunately that only throws into contrast how absolutely terrible some of the other artwork is, like the fish and minor one off NPCs. Also there are times when a character has a LOT of lines, but no art work, so you're staring at a very flat background (the backgrounds are pretty terrible). But again, the good artwork is REALLY good, so it's sort of a mixed bag.
Next up, the plot, it's beyond inane, but I'm sort of led to believe this is what you'd expect from DBZ? So we'll give that a pass. Again my own lack of knowledge on the subject is limiting here. But I feel like even if I did have a grip on lore, there'd be some seriously extraneous moments. I'll give it a 5/10 just based on what I suspect is staying fairly true to the lore of the show.
Finally we need to talk about the system. It's decent, but not great. The puzzles are a really nice touch, and while simple, were one of the bits I enjoyed the most. It's nice to see a puzzle system that actually works inside Renpy. However the stats don't seem to matter more than twice, and it feels like the author simply gave up on the idea of using the puzzle mechanic as a way to gate content. This feels like a bit of a shame honestly.
Overall, decent little piece of work, but if you're not a DBZ fan, give it a pass. You'll be lost, I was.