An options menu? IN A GAME JAM GAME? Never seen before!

The graphics are awesome obviously! Music seems fitting, I like it.

At character selection you display the keys for the US layout of keyboards. It's probably horribly difficult to implement, but it's confusing to have to press Z when your keyboard has a differnet layout and the button is actually mapped to A. Maybe allowing clicking for selection would be an easy work around.

I feel like this game would easily turn into something completely amazing if only two things changed

• Character movement - you are probably using a physics based controller? Jump height feels odd to me, so does gravitational force and also movement in general. I would suggest switching from using a physics engine for moving to directly modifying the position of the sprite for snappy movement. You can also tweek gravity and other stuff this way.
• Feedback - especially when getting hit, but also for jumping and landing

Awesome work!

Good work. The only thing that doesn't feel right is the distance covered - the scenery scale makes it looks as though you're running much further than the final figure!