I made Mario Bosses HARDER (Custom Bosses)
HARDEST Custom Mario Boss I've EVER Played - Omega Fennel
I made Mario Bosses way HARDER (Mario Odyssey Custom Bosses)
I made Mario Bosses EVEN HARDER (Mario Odyssey Custom Bosses)
I made Mario ENEMIES into BOSSES
I made KOOPA into a Custom BOSS (Super Mario)
This is the HARDEST level I've ever beaten
I made Mario Levels Impossible
Super Mario Party Jamboree - KING BOWSER'S KEEP BOARD (Master Difficulty AI)
I made everything an enemy?! - Mario Boss and Enemy Maker?! (Mario Multiverse)
Super Luigi Odyssey - ALL BOSSES AT ONCE!? (6 Hardest Bosses!)
I made Mario Wonder WAY HARDER
I made Every Level HARDER in Mario Wonder
The HARDEST Boss Battle In Every Mario Game EVER! [55 Games!]
I made your BAD Mario ideas
13 HARDEST Levels in Mario Wonder
The Greatest Game of Mario Hide And Seek ever played
25 HARD Boss Battles in Mario Maker 2!
Mario Maker 2 - ALL SUPER MARIO ODYSSEY BOSSES (Super Mario Maker 2 Boss Battles)(Boss Ideas)
Top 5 HARDEST bosses in Mario World romhacks