IGIUL! (Full + Creator Commentary)

Mario VS Oiram 3: The Final Battle (Full + New Opening!)

Mario VS Oiram 2: Oiram's Revenge (Full + New Ending!)

Marjo and Marko, Explained!

This Game Made Me Depressed

(April Fools) Ztarragus's Island 4: Ztarragus Gets ANGRY!!!!

Creator Commentary: Dr. Mario VS The Wonderflu

Shy Gal Flips Off Kamek

Ranking All My MM54321 Videos From 2007!

What is the secret of the Seven Shoddy Shorts?

It's a Wonder Nabbit Nabbed Christmas Again!

MM54321 Got 100,000 Subscribers + Joe Lememe Face Reveal

Super Mario Bros. Wonder Bloopers!

Halloween 2023: Masters of Horror Land

Dr. Mario Wonder - NES Game ROM Hack by MarioMario54321

MM54321: Dr. Mario VS The Wonderflu

Thank You, Charles Martinet! (A Tribute to Charles Martinet)

Mario's Pizza Delivery: Featuring Peppino

What's Next? Predictions for the Mario Movie Sequel

Mario And Friends Go See The Super Mario Bros. Movie

Mario Kart 8 Deluxe Bloopers 4

Mario Kart 8 Deluxe Bloopers 3

Super Mario Bros. Plumbing Commercial but with SM64 and Gmod

MM54321: Luigi Loses It

Mario Kart 8 Deluxe Bloopers 2: Electrodrome-aloo

MM54321: Christmas in New Donk City, Sorta.

The Boo with the Golden Eye (A James Bond Parody)

Mario and Sonic at the London 2012 Olympic Games Bloopers 3: Mario mourns the Queen.

Dark Star X: The Final Attack - Part 3

Christmas 2021: The Toad Family Under the Bridge