WarioWare: Twisted! (souvenir)
From the Super Mario Wiki
WarioWare: Twisted! is one of the game souvenirs found in WarioWare: Twisted! It is unlocked after completing all microgames. After the final one is completed, a message of congratulation pops up and the WarioWare: Twisted! souvenir is awarded. It is located at the far-right end of the Games folder. When selected, it shows the boot-up screen of the Game Boy Advance (regardless of what console it's being played on), but the boot-up sound is juxtaposed with the sound of Wario driving in and crashing. Beyond the unique sequence, all it does is go to the game's start screen with no changes. The game continues normally from there.