Hello! from a indie to another indie ima give you my honest opinion on this game. It started out pretty good but the side scrolling background have a sense of slowness and I felt as if I wasn't going fast enough. The enemy's were a pretty easy and there wasn't really any difficulty curve (even though the grim reapers took 2 hits). The art wasn't the best but its a start. Aside from all of that I am glad that you understand one thing many people starting out DONT understand, Game feel. And on that note I say that this is a great start and I hope to see more games from you. keep up the good work and good luck on your future projects.
-RexTGun