I just played this, and I loved it! The theme is on point and the general game-play reminded me alot of the rock of ages (but with beyblades lol). The physics surprisingly felt pretty robust and fair to me, great job on that because I know how tough physics are to deal with on game jams. I'd love to see you build upon this foundations with perhaps modular upgrades, or maybe the enemies could start attacking you?
This rocked!
btw, go check out my game, if you haven't already lol