I liked a lot the idea behind the game. I liked how you applied the "Only one" theme and I think the game is very promising. Unfortunately I couldn't run the game past the tutorial (seems like it's a problem with my PC, not the game) so I couldn't see it with more depth. Anyhow, I really enjoyed it! There are only two things I'd like to point out. First, sometimes the slime sticks to the side of the floor platform, and second, more as a suggestion, something I'd like to do is to be able to control the jump intensity. Other than that, great entry! 4/5