Fantastic game!
The best game I've ever played on Newgrounds. This is it.
There is actually a glitch, however. If you use a mushroom while Mario's already big, it will waste a mushroom.
One thing that would be nice for this game is a save feature. That way I wouldn't have had to leave my computer on overnight ^_^
Very very good work. It took me forever to beat, and for some reason I found Gravity Man to be the hardest... Well, next to Super Mecha Sonic, of course.