This was a fun little platformer, and what a very unique shooting mechanic! I wasn't sure if I'd receive a bonus at the end for holding onto my coins instead of shooting them, so I tried to see how many I could rack up by the end, heheh!
I really appreciate that the camera adjusts so you can see further ahead of where you're running.
The graphics feel very "programmer art," but it really works with the general vibe of the game and doesn't subtract from where it shines: the stage design. The platforming was lots of fun-- I really enjoyed the segments that utilized crumbling blocks and jumping off of enemies!
With a bit more variety in the stage mechanics, I could really see this turning into a great platformer! I hope you update it with more fun ideas!