it's good, the concept as a shoter who gets harder and harder it's great for me but there some things that you can do to get a even better SQUARE MASTERPIECE.
1. the game is in a windowed mode but as i have a 1080p screen it looks weird there's a lot of space where theres nothing and all the game it's into the up left corner of my screen.
2. the starter enemys are not hard but frustrating, they need a lot of bullets to die and i would like a thing like, the pistol enemys die with like 2 or 3 bullets for example, the rifle ones with 5 and so on because it's more "adapted to their fire power".
3. the only thing that i really hate was that you have to jump with "w" key, if you change it to the space by default it's gonna be a lot easier to play and more comfortable.
That's all, even with that little problems it looks like a great project, i hope you can keep developing it and actually get it better even than the dani one :D