I'll also try to finish one more (the one that I started earlier), though it won't be done till tomorrow. So if you're willing to wait for BUG and me, we'll probably have two more prototypes tomorrow, and mine will use superku's work as well, if that's all right with you, Ganderoleg.
I know that you asked for closed-level and non-sidescrolling, but I really think this game will live off of that. So if it's all right I'll try making one with sidescrolling and no level border.
I'm sorry if I go against instructions here, but I believe it is a big part of the game, and I like the way superku's new demo works, I want to try how it looks in a stylized world...