MarioMario54321

MM54321 is a SM64 Machinimatist appeared in SMG4's Videos. He makes a cameo appearance sometimes.

History
His first notable apperance is in The Blooper Competition, but he also appeared in:
 * The Imposter
 * Starman3 gets 5000 subs

3 facts about him



 * He has over 15,000 subs even though he started his youtube channel in 2007
 * He and Smg4 are not fighting over each other in bloopers
 * MM54321 has over 50,000 views