I spot a few bugs, like how you can walk and shoot at the same time (not a bug per say, but there's no walk/shoot animation so it looks like you're just gliding, how if you boost between comic boxes the character sometimes runs up against the wall, and to improve: how about making transitions between boxes seamless, like you walk from one edge straight to the other, without the white space between? I mean there'd still be white space, but you wouldn't see the character walk through it. Would be good with trap doors you didn't have to wait for too, and maybe some effects on enemy hit, die, etc? I like the idea man, keep it up!
-cd-