It's that time yet again. Bowser's kidnapped the princess, taking along the koopalings to watch over each world in case that pesky Mario tries to interfere. The only problem is that the youngest koopaling, Larry Koopa, has been left behind. He is kind of forgettable, I guess. Now Larry has to travel through all the agonizing worlds until he reaches world one, and there are plenty of things that might appreciate a koopa snack.