MarioMario54321 runs on a pyramid.

MM54321 in an Ice World Adventure is MarioMario54321's 6th video and stars himself.

Story: MM54321 goes to the pool in the Castle Basement and is warped to an IceDesert. After a while, he goes back to the castle.

Characters: MM54321, SnowBird, IceDesert god, and IceDesert Bully.


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