Wario Land DX is Now in Full Color. After being ejected from Mario's castle in the previous game, Wario resolves to get his own castle, one even bigger and more impressive than Mario's. To fund this extravagant dream, he travels to Kitchen Island, where the Brown Sugar Pirates have hidden many treasures and coins, including a golden statue of Princess Peach, stolen from the Mushroom Kingdom. Wario intends to retrieve this statue and sell it back to Mario for the price of a castle.
After exploring the island, stealing the pirates' treasures, and infiltrating their Syrup Castle, Wario confronts the leader of the pirates, a female buccaneer named Captain Syrup. She summons a genie to destroy Wario, but he defeats the genie and Syrup destroys the castle with a large bomb as she escapes. In doing so, the pirates' biggest treasure is revealed: the giant gold statue of Princess Peach. However, Mario appears in a helicopter, thanks Wario and takes the statue away in front of his eyes.
Still holding the genie's lamp, Wario summons the genie and wishes for a castle. The genie tells him that he requires money to grant his wish, and so Wario gives him all the coins the player has collected over the course of the game, plus trades in all the found treasures for more coins.