Cool idea, but was very hard lol. Id make the bat's bullets slower to allow the player to dodge it, as they already cant control their jump. I liked the bounce on the dice when landing, nice juice!
Looks like your machine's refresh rate is much higher than 60 FPS and I had stupidly set everything (movement speed, etc.) to depend upon the FPS as I thought HTML Canvas locks at 60 FPS. My bad (if that's the case).
