The mechanic is very interesting and well-presented to the player! I was also impressed by the animations of the player and ghost, as well as the art style as a all.
Still a higher jump for the player would have been nice. I had a lot of trouble infinite jumping at the end to get across the two last walls with the small box, until I realized I wasn't supposed to it by throwing myself in an eternal void x)
Although it was short, it was a good game, especially for a jam. ^^