Neat concept for a game. Quite a unique interpretation of the theme.
Found it interesting to see how the level would change as I progressed further in the game. Graphics are nice, and I liked how you did the transitions between different levels and the game over screen.
For improvements, I'd suggest working on the controls. The jump in particular could feel a bit unresponsive at times. It would also be cool if you could vary the positioning of obstacles/enemies a bit as you progressed through the levels (although that would've been hard to do in the Jam Time).
Overall, interesting submission. Keep on jamming!