I like the idea; the game is fun, but needs some polishing.
When I lost, the game sent me to main screen, the level music doesn't stop, and level music and main screen music were played at the same time. I died near to an enemy without a touch between the player sprite with the enemy sprite. When jumping, I feel a low gravity that doesn't convince me.
Anyway, congratulations for the game. I obviously have in mind that this was made in 48 hours. Good luck for the rest of the jam!