I played through your game and here's some comments and feedback:
- Giant enemy crabs? Sony needs to fund this project for the PS5
- Custom artwork was nice and well made!
- The star puzzle was relatively easy. If it reset when the player made a mistake, it would have been better as a short memory game
- I like the diversity in the cast and how unique they look. Unfortunately, that's also a weakness because I feel like there are too many characters to develop them all within a short playthrough would be difficult
- One huge problem: I can't go past Cell Block 2 because my party wasn't fully healed. So with Natsumi dead and my other 2 party members with only 4 HP each, there's literally no way to beat the two Alien Guards. Unfortunately, with my save file leading to the same cutscene, this is where I had to stop playing.
Good job with the game!