Pet Chameleon

Pet Chameleon is a souvenir that players can unlock in WarioWare: Touched!. The chameleon initially starts off as green, but when players tap and drag down backgrounds, the chameleon changes color to match that of the background. Another randomly chosen background pops up, where the player can drag down that background to change the color of the chameleon again and so on. If players tap on the touch screen, the chameleon shoots its tongue to wherever the player touches.

In-game description

 * "Chameleons blend into their surroundings. If you threw one into a giant mound of butter, it would look like a chameleon-shaped stick of butter! Try pulling down the wallpaper to see this buttery ability in action!"