Awhile back I made a game which featured no tiles of the same number. It was so laggy than not everyone's computer could run it, but for those who's computers could, they were in for a shock: The amount of lag from this game gave each entity, including the Player, a doppelganger (clone). Due to this glitch, the teleporters wouldn't work, so in this glitch test I fixed it. I'm not sure if this would still hold the glitch if presented in the new platformer engine. Either way, enjoy (assuming your computer can handle the lag).
