Honestly that RPG maker fangame could be decently popular if it fixed a few thing (I played the regular version):
1: Change the pic that appear before the main menu and change the main menu, it make the game look like a shitpost mod for BT3
2: Make the game findable beyond an obscure Itch.io page.
3: Get a better less generic title to not be drown out by the google search result.
4: Review at least the balance of the game start, as it is, it probably confuse most newcomer
5: Get rid of the characters constantly screaming their attacks, it's okay at first but after a while, hearing 'Special Beam Cannon' for the 5th time in a row make me want to scream. And using official audio probably isn't wise.
6: Polish the map a bit, they have potential and soul but they are janky and often make no sense.
7: Reduce the random encounter rate, please for the love of god. The absolute lack of AOE attack doesn't help. Less encounters but more enemies per encounters + Some AOE attacks would do wonder for the game.
8: Add some healing moves so you're less dependent on items since backtracking to heal is just not viable.
9: Probably move the game to a better engine than RPG Maker 2003. It would also make the game look less like disguised malware to the tech illiterate.
10: Probably make the game playable on the Itch page directly.
11: Add a key to Charge Up without having to go through the menus every time, also please fix the fac that it doesn't fully charge you up outside of combat if possible. Alternatively, just restore ki completely after each fight since Charge Up is supposed to restore you to full anyway. (I think you can do that by giving everyone a passive skill that restore all ki after every battle)
12: Chaozu is way too weak and useless, not only does a lower level, which is okay but he also has way worst stats than everyone else. Some ways to fix that could be to make him a gimmick character, with stuff like his paralysis or go all in on the buffs since he already has Crane Meditation, which is sadly too weak to really make a difference.
13: Heal characters between POV switch, there are way too many moments where I ended up in a fight with no ki and almost no life because of a POV switch after a boss fight
14: Make enemy health bar visible by default, it allows us to plan our ki use much better and is a big advantage. Also add a timer for Kaioken so we know when it's gonna turn off instead of it happening seemingly randomly.
15: Rebalance and remove some moves. As it is there are a lot of move that serve no purpose because they cost more than the generic ki blast but don't do enough damage to be worth using over it, anything that dies to them in 2 turns will also die to Ki blast in the same amount of turns.
Now some stuff that's more of a 'wishlist', maybe for your next game:
It would have been nice if the game started all the way in OG DB. Some 'what ifs' and alternate power up would have nice too, like Goku getting Artificial Human upgrades instead of another power up, kinda like how you can unlock certain moves in certain side quests like the Flurry in Turles's quest.
I think that's all the feedback I could think of at the moment. I know the game is already completed but I really liked the game and I felt my feedback could still be useful. There are some great moments like unlocking Flurry against Turles if you do a specific stuff, too bad it was just temporary, I hope the Slug quest would allow me to go fight Frieza as a False SSJ. Anyway cool game and I hope you make more! DB fangames, especially RPGs are so rare.