Yust Man 2
After his first grand adventure, Yust Man decides it's time to get even with Dr. Wily for making his face the way it is. What follows is an insanely long, difficult and cheesy Classic Mega Man styled game. I actually put some time into this game, but in the end it served more as a project to learn the ropes of Game Maker than a good game; personally I think it's downright terrible. It has some aspects that make it seem like a half-decent game (such as hidden weapons, a charge shot, stage select (but with very cheesy 'bosses'), Dr. Wily castle and loads of bonus content), but unless you enjoy sprite mixing, crappy controls, crappy engine and insane length and difficulty, best steer clear of this one.
Though if there was ever a game to earn you bragging rights for seeing it through to the end, I think this would be the one. The difficulty of this game is truly brutal.