Watch The Super Mario Bros. Super Show! Season 1 Episode 21 full movie online free in HD with English subtitles – no download needed.
The Super Mario Bros. Super Show!: Koopenstein Koopa plans to use Mario and Luigi's brains for his monstrous creation. When the Marios set out to stop him, an accident in Koopa's lab turns Koopa himself into a mindless monster. Baby Mario Love The Marios find themselves acting as temporary replacements for Susanna Ross' band.