I thought there wouldn't be much more to it than a simple platformer game, but something about it seems really cool. I like the pixel-perfect parallax sky especially (even though it seems a little buggy), and the interesting jumping. If I could give one suggestion, I would appreciate if there were three different buttons for jumping, so a player could play in whatever style is comfortable to them. W, space, and up arrow. Especially since there aren't any in-game instructions, it could save the player from a little bit of frustration. Although maybe you use those keys later on for a different mechanic? I wish I could play the next level! Oh and also I'm not quite sure what those spike boxes are. Are they spike boxes? Anyway, good game!