Wario: Master of Disguise, released in Japan as Kaitō Wario the Seven (怪盗ワリオ・ザ・セブン, Kaitō Wario za Sebun), is a platforming game that features Wario as the main character. In the game, you control Wario and will use the touch screen to defeat foes and solve puzzles. It was revealed at a Japanese press conference in 2005, and wasn't shown until a Nintendo press conference in late 2006. In the game, Wario will be able to change into multiple different costumes such as painter Wario and dinosaur Wario.
In the gameplay of Wario: Master of Disguise, you draw different shapes on the touch screen that correspond to which costume you want with the stylus and you can change costumes at any time.