the game idea is really fantastic and its really cool .
the way that it gets harder and new enemies is really good.
but the things that i think may make the game more like a finished game is:
1. player needs a idle animation so if player is not moving or jumping it shows the idle animation.
2. the menu is really good but it lacks animation . i think if you can maybe put spawning enemy and game background in the menu , i mean like i did in my game it becomes really cool.
i love that it supports controllers too