Really cool idea! I'd be interested to see a fully fleshed out platformer with this game mechanic. I got really low gravity early on and was able to skip a few levels by jumping over one platform. I like the idea of each level being randomly easier or harder depending on what you get. All of the enemies despawned as soon as I started the level. (They were visible until I selected up or down) Can't remember if I got a reduce enemy health buff that might have caused that. Either way, it's cool I got things that made the game easier. I selected down every time. Nice job!