As someone else said, it's an neat idea, combining a labyrinth with a platformer in a wide open space. I appreciated that a misstep wasn't certain death. You don't fall too fast, so paying attention to your surroundings gives you an opportunity neatly recover.
The main thing the game needs is feedback/guidance for the player. There are no sound effects for jumping or successfully eating a horse. Some indication of where to go, how many horses are left, and where I might be in the map would have been great. I also ran into an glitch where I sank into some of the platforms. I couldn't figure out why, and it would mess up my jumps.