I like the way you mixed genres/gameplay, have some dialogues and a story, and divide the game into different sections.
Having said that, the gameplay itself is rough and doesn't feel right. I'll spare you the details, cause you probably got this a lot.
The sound effects are a bit loud and annoying. Graphically, the artstyle lacks consistency. You have some nice explosions and effects (the pool shader), but they don't fit too well with the other parts. Animations are too long sometimes or get cut short, enemy shadows aren't below enemies, hit effects are too small to be readable and don't provide much feedback (and there's no hitstop, screenshake, or something else in place of that).
It's a complete game though, and that's a lot. I played it from start to finish, which says that even with those flaws the game interested me and managed to surprise me. So good job :)