Pretty nice. I noticed Luigi appears in front of a pipe when leaving them, also if you press the opposite direction at the same time as walking the other way he moon walks ^;!
This actually has some potential. Just fix the problems addressed above. I think you should make an animation for when you go in and out of the pipe as well.
Alright, also the tutorial world might be an exclusive only to this demo and not the full version. If you want this level in the full version. PM or E-mail me.
People like Adam, and other heartless fangame nazis, will hate the game for being a fan game, and say you didn't have the guts to make an original game, but don't get discouraged. In reality it takes more guts to make a fan game because everyone tells you not to. Game design is not about listening to everyone else, it's about being yourself, and being free, whether people like your game or not.
Anyway, I enjoyed this game. So that was the default movement edited? No PMO? Because I thought it worked pretty good!