When you drop Bowser into lava, he’s defeated, right? Wrong! Though his flesh may be gone, he’s still ready to fight Mario! This form first appeared as the penultimate boss in New Super Mario Bros., and has been a secret boss in some later titles. Strangely though, Dry Bowser may be even more famous for his kart racing career, with Mario Kart Wii being the first time you could play as the undead king.