That's a great start to a game, simple and intuitive, would be interested in more/bigger levels, obviously time was a constraint in the jam for all of us. The score appearing as you picked up coins was cool, the restarting if you died was fluid. Only issue I had was jumping to that last platform, I had to press space earlier than I was expecting to work, have a look into coyote time for game development if you're not aware of it, it helps the player experience in platformers