On top of the fact that there's no sound, it takes 20 minutes to complete, and there is barely any animation, the game plays like ass too. The jump has an obnoxious delay which makes tight platforming impossible, there's no sense of momentum, and the collision is awkward. The level design is also terrible, the hazards are just randomly placed on the ground mindlessly and there's no real obstacles to the platforming. The only reason you can fail is because you messed up due to the awful controls.