http://www.kongregate.com/games/Lionga/kongregate-avatar-creator-contest?level=260563 This level is good but I think it looked better without the shading.
I know all you guys want all these checkpoint blocks, lava blocks, killing blocks... but then, everyone will start using them (probably) and this game will turn out like all the other games. And also, public rooms would be chaotic.
I think that the "Save Room" option should be allowed even if you don't have Beta, because with or without it, successfully creating a room is extremely difficult.
The only things I think are needed is a fill tool, a little box that pops up if you accidentally click "clear all" instead of "undo last" and asks, "Are you SURE?" (y/n) and a "browse MY avatars" on the dropdown menu at the other avatars.