The latest from Did You Know Gaming looks at the history of Dr. Mario as well as some unused power-ups that never made it into a final Mario release.

You will learn about how Dr. Mario changed leading up to release, hear an unused track, and then learn a whole lot about chicken Mario, centaur Mario, and more.

You can check out other videos from the Did You Know Gaming channel covering Dragon Age, Zelda: Majora's Mask, Tetris, Monster Hunter, Grand Theft Auto, Halo, more Halo, The Last of Us, Pokémon, more Pokémon, Assassin's Creed, Mario, Jet Set Radio, Mega Man, Fire Emblem, Donkey Kong, Killer Instinct, Rayman, Mass Effect, Dragon Quest, Guitar Hero, Final Fantasy, Castlevania, Star Fox, Punch-Out, Metroid, Zelda, more Zelda, Final Fight, Doom, Dragon Ball Z, multiple Super Smash Bros. videos, Team Fortress 2, Harvest Moon, Tony Hawk's Pro Skater, the history of the NES, Genesis, Dreamcast, PlayStation 2, Xbox, GameCube, Nintendo 64, the DS, the PlayStation, PlayStation 3, and two covering the Game Boy by hitting the links.