I can see your effort on the animations and visuals.
I think there were a lot of times that I died and I didn't understand why. (I also died alot to the spikes)
This was confusing, I guess you aimed for it so good job. I do think that you can have the text not in a sign, but on the screen - that way the player won't have to stop and read the text, and he can have more flow in the gameplay.
Well done! A jam isn't an easy task. Be proud of yourself.