I really liked the little thing you did with the title text when you hit play, that was so nice. However the gameplay is so simple that I don't have much to say about it, like it's not bad, but not great either, I just think you could've added a little bit more, maybe another type of pickup, maybe some powerups. Maybe there were and I just didn't play long enough to see them, but from what I saw it's just very basic. Besides that, you used anti-aliasing techniques so much in your pixel art that some of the art isn't very readable.
Maybe I'm being a little picky, but I personally really like when someone gives me honest feedback, so I hope you don't feel like I'm sorta tearing you down