Pros: 

• It's playable in browser or on a phone
• Matches the theme pretty well

Cons:

• Jumping seems to mess some things up. The world begins to shake, my keyboard will start to influence the direction objects fall and worst of all you can't even do it on mobile.

As a bit of constructive criticism I'd suggest you to try and improve your art skills or maybe compete as a team next time, it never hurts to get some help (^_^)

Simple and fun game :) I suggest you check when the rocks are generated so they don´t spawn on top of coins.

Good job on completing a game for this jam! It's a little rough around the edges, but I like it. The pixel sprites got blurry I think you forgot to turn off some filtering on them. I think it'd be a better decision to make those falling rocks disappear after touching the floor because they got in the way of my fun lol Good luck!

I don't know if it's just my problem, but it doesn't work.