The biggest issue with the game/story that I can see is that the game doesn't really acknowledge Futta capturing any other 'mon besides his starter.
Like, you go to the tournament and the story presents it as 1-on-1 battles, but actually it's 3-on-3.
While you're facing Star trainers, your MC repeatedly talks about how he only wins because of Chickpu and his cheat attack, but you can pretty easily just train up regular high-level mons to win battles for you.
Even the climax at the end, you have an option to switch out your monsters and use something else instead of the obviously-intended specialmon that you get.
TLDR, the story and the gameplay don't really line up.
Edit: And the game-screen keeps fucking freezing while the sound continues in the background, during cutscenes.
I just had it happen at the fucking epilogue. Now I need to do the whole final battle over.