Awesome Builder!

There are a couple things I wont mind seeing, like bosses, and some extras and more complete tilesets. The ground that has hills, they had sides and cave like parts to them so you can create such things. A more complicated (but easy to use) system would be nice so you do not have just 1 down pipe and up pipe to another area. The Limit to 24 to the game is kinda small. That I can see per world.

Some real problems I saw was when you jump just right while standing by a wall will make you go through the block you are standing on. Not all objects that are jump throughs are suppose to be jump throughs at all, they are suppose to be solid, Ie: the wood group from SMB3 are solid in full.

Over all nice system, enjoying it alot even with those problems. Keep up the very good work.