Love this demo! You had me at 'metroidvania!' The pixelated style, artistic backgrounds and platforms, the whimsical characters, the music and sound effects are well constructed. I enjoyed the movement and the the platforms style. I managed to acquire a lightning bolt and visited the elevator area, although I could not continue. I found a dark area with secret platforms. Eventually, I was brought back to the beginning. I enjoyed this very much, and I would love to play the full version whenever you post it. Cheers! ;)