The Artwork is amazing!! The contrast of colors using red, white and black truly highlights the theme. And the Core Game Mechanic, was on a whole another level. The puzzles felt confusing in the beginning, but as the solution came through, the game becomes more and more fun. One thing I would suggest to change are the controls. As you know the default controls for a platformer game are W or Space for Jump and A & D for movement. The K for Jumping made it confusing at times. I'd suggest some letter closer to players reach (Like E or Q for instance) to switch worlds and Usual W or Space for Jump. The rest was indeed great. Excellent!!