Checking up on his missing friends, Pico is pulled into M's world and is met with a mysterious Luigi. After being mistakenly thrown into a pit of lava by his own brother, Luigi's vengeful spirit has returned. With his omnipotence and reality bending powers he wreaks havoc on the mushroom kingdom and it's inhabitants. After killing Mario in the same way he was kiled(sic), he plans on giving you the same treatment.