The textures were well done. I especially liked the animated red exclamation points which jolted you out of place. I think your speed should be MUCH faster. It looks like you ignored the processor FPS, causing speed to change based on the user's computer, as some jumps were impossible for me and my slow pc. Beyond that...
The wall jumping was decent. Wall jumps are a surprisingly hard feature to implement in games, and you did it well. The game could have benefited from some sound, but it was still decent without it.
Jams are hard, and you did a good job!