Reznor ("Buibui", spelled ブイブイ in Japanese and 부이부이 in Korean,) is a gray-colored, fire-breathing triceratops that appears as a fortress boss in the Super Mario series. It also appears in Super Mario Adventures and the Japanese manga, Super Mario-Kun. Interestingly, they always battle as a quartet (except for World 1-Tower in New Super Mario Bros. 2) and can be found standing on top of platforms connected to a giant wooden wheel. The platforms are similar (in terms of the concept) to the rotating magenta platforms first found in World 1-1: Make Eggs, Throw Eggs of Yoshi's Island for the SNES and Game Boy Advance.