While Wario enjoys the riches from his many adventures, a mysterious black jewel in his trove transforms gems into monsters. Now, Wario must scramble to recover his riches in an alternate world filled with quirky puzzles, swarming enemies, and lots of loot. As Wario, you'll punch, kick, jump, grab monsters and objects, and inhale surrounding coins like a vacuum cleaner. You must cling to 3D balls to fight bosses, find hidden areas through trap doors, and bash your surroundings to uncover secrets.

Wario World is a beat-em-up platformer starring the greedy antihero Wario, who has finally built himself a grand castle stuffed with all the treasure he has plundered over his many adventures. His contentment is short-lived. Hidden deep within his glittering hoard lies an evil, sentient gem known as the Black Jewel, which suddenly awakens and seizes control of the castle. With a surge of dark power, the Black Jewel corrupts Wario's beloved treasures, twisting them into monstrous enemies, and warps the castle itself into four sprawling worlds teeming with danger. Furious at the theft of his riches, Wario storms into these transformed realms to take back what is his. As he punches, piledrives, and hurls his way through hordes of foes, he also works to free the Spritelings, tiny creatures who long ago sealed the Black Jewel away, in his rampaging quest to reclaim both his fortune and his home.