Mewtroid 2: Return of Sameow

Mewtroid 2: Return of Sameow is a souvenir featured in WarioWare Gold. It is a minigame which can be unlocked in the game's Toy Room. It is a sequel to the original Mewtroid from WarioWare: Twisted! (also included in WarioWare Gold), and its name is a play on the game Metroid II: Return of Samus. Mewtroid 2: Return of Sameow shows Mewtroid in an -style power loader. The minigame has color graphics unlike its predecessor, something that is ironically the opposite between Metroid and Metroid II: Return of Samus.

The player controls Sameow, who is hanging from the wall of a spacecraft, and must shoot down as many turtle-like and crab-like enemies as possible. Sameow's range is as far as the top screen, and the player can control Sameow's aim by tilting the system. Defeating a creature yields 100 points; after the turtle-like creatures are defeated, they can take other enemies and cause point chains by rotating the console. After several enemies are defeated, a large, green monster emerges from the bottom screen. The boss can be defeated if four turtle-like creatures fall into its mouth, and its defeat rewards the player with 10000 points. Like the original Mewtroid, the minigame ends if an enemy touches Sameow.

A techno-style arrangement of the Brinstar theme composed entirely of "meows" plays throughout the minigame.