This is just a simple little 2.5D engine that I coded for like a half hour. I think if you utilize it correctly, you could use it in a platformer or something. Use the ARROW KEYS to move around! Also, don't go too far off screen or it will throw off the perspective. If this happens, click the green flag to reset it.
There have been some reports of lag, please do not use Fullscreen, because that is what causes the lag. All code and art by me.