Very fun, creative game!
I played it half-way through, and made two of my own levels called: "eels and escalators", and "very difficult test".
Creating levels are easy, and worth making.
The single player has VERY creative levels, and even gives a bonus to the player when they do well.
Overall, this is great, I am just not a fan of the music, and thought that a few medals were rediculusly hard to get. that's why i voted 8/10