I liked the concept!
The fact of not moving actually killing you really fits the theme! The art style is original and i like it, hitting enemies feels very satisfying (very JUICY hit stop). The fact that you get health on each kill is a real life saver, because otherwise the game would be way to difficult!
A few things that I think could be improved:
- Maybe adding some invincibility frames after getting hit would help, because otherwise if two
ennemies shoot at you at the same time, you die instantly.
- The hit stop before attacking is a bit too long IMO. (the one after hitting an enemy feels excellent though).
- Also music is too repetitive, but sound effects are nice!
Good job!