Mario vs Jeff

Mario vs Jeff is the third episode of Mario dies. Jeff is introduced in this episode.

Peach's Garden
Mario is standing around when suddenly Jeff begins talking to him. Mario is annoyed and attempts to find him, but Jeff reveals himself to be omniscient. As Mario runs away, Jeff says that he is Mario's "arch-nemesis". Mario is then convinced to jump into the empty moat twice, taking damage. He then jumps into Vanish Land.

Vanish Land
Mario jumps down the large slope, removing his last 4 wedges of life. He dies while Jeff laughs maniacally.

Peach's Garden
Using the secret entrance, Mario enters Peach's Castle.

Peach's Castle
Mario runs to a blue flame, which lowers his life to 1 wedge. He then goes to the Lava Dungeon.

Lava Dungeon
Mario runs along the main path. He long jumps into the lava, dying.

Peach's Castle
Mario goes to the Bowser in the Fire Sea room. Jeff goads him into going to the level.

Bowser in the Fire Sea
Mario survives most of the level. However, he is eventually done in by a flamethrower.

Peach's Castle
Mario goes to the Lava Dungeon again. He loses all of his health on a flame before entering. He dies immediately upon entering as Jeff laughs. He then heads for the Desert.

Desert
Mario is convinced to grab a Crazy Box with a Bob-omb on his tail. Holding another Bob-omb, he falls into the quicksand.

Peach's Castle
Mario goes to the Horror Dungeon.

Horror Dungeon
Attacked by a Scuttle Bug, Mario jumps into a pit. Jeff laughs in victory.