Wario World is Wario's foray into 3D developed by Treasure and published by Nintendo for the GameCube in 2003. After having his castle destroyed by the Black Jewel, a cursed jewel that can transform gold into monsters which was sealed by the Spritelings before he, in his greed, collects it, he sets off to defeat it and rebuild the castle from scratch with the Spritelings' help.
EZGames69 and inconsistent take advantage of huge level skips on several stages, skipping needing to collect the red crystals needed to enter the boss arenas on several occasions, as well as Super Jumps to defeat the Black Jewel as fast as possible. More details can be found in the authors' comments.