Pet Hamster is a souvenir in WarioWare: Twisted! found in the Other section. It features a hamster in a hamster wheel, with some wires connecting the wheel to a nearby lightbulb. While the console is tilted, the hamster starts running on the wheel, speeding it up and giving power to the bulb, which also lights up the area. If the hamster keeps running, the bulb is overloaded with power and loudly shatters, sending the hamster circling around the wheel. Once the hamster stops spinning, another lightbulb appears in the last one's place, and the hamster can continue running to power it. This can continue infinitely, as nothing more happens by breaking any more bulbs.