Those temporary tiles look sweet
added door/key. Actually it's not a key but a 2*2 button b/c I have no idea how to sprite a 4*4 key, but w/e
also added text to the tile select GUI such as "FLOOR/WALL", "BOOST", "START", etc. thanks to Deep Thought and Ztrumpet for help on that
I have an idea of how to do a levelset, so that's probably coming up soon
Also, should I enable password protection for the levels, like in the mario1.2/2.0 editor?