Needs work but for a first project it's impressive! Maybe add some items or a way to regain health. Also needs less enemies coming at you all at once at the start. Instead of having the tutorial be before the level, maybe actually have the player learn the controls in an actual level instead of a room separate from everything. Makes a player more likely to keep playing.

Nice! Maybe in the first seconds of the game is too hard... if you can control the enemy's waves I suggest to make easier at the beginning