Very clean game. Like the others, I would have liked some more sounds in it as well. I liked the particle effect on the room exit that leads back to the title menu, I think it would look good on all room exits. I liked the gravity switch in the game, its a great feature! In the two rooms where you have to jump over the spikes and then the spikes and aliens, I died a lot there, the spikes seemed really close together. Overall its a lot done in the jam time! It feels smooth :)