I think the idea for the mechanic is super interesting! Would be great to see it more fleshed out with some levels. The animation for the ghost is cute ^^ The music is nice and sets the atmosphere well. For some reason i couldn't move the ghost to the left using WASD, but i could using the arrow keys. Jumping controls were a little clunky - i think a higher jump would be more satisfying, and allowing the ghost to "hold" platforms in place for longer would allow you to do more with puzzles in the future.