I feel it's quite an interesting mechanics to have and really fits the 'Out of Control' theme! Some of the jumbled up keys to move and jump can have quite awkward placings (but I think this was done intentionally to up the difficulty of the game). I also think the art was well drawn and I like it!
A few pointers for improvement though. I think the fonts can be bigger so that players can see the key changes clearly. Also, a dynamic mini map to guide the players would be helpful and the maps are being jumbled up as well when the slime reaches the checkpoint and it can feel a bit confusing on which direction to go after that.
Overall pretty well done game and I look forward for a release of a more complete game!