Mega Wigglers are enemies that appear in New Super Mario Bros. Wii and Super Mario Galaxy 2. These enemies are a huge sub-species of Wigglers. In New Super Mario Bros. Wii, Mega Wigglers only appear in World 5-2. After going through the forest where regular Wigglers are found and entering a Warp Pipe, Mario (and Luigi, Blue Toad and/or Yellow Toad) enters (and his crew "enter") an underground cave where many Mega Wigglers can be found, along with some Swoopers. These enemies appear walking through small passageways in different directions, as well as walking out of the dangerous Poison Water and walking forward. Mega Wigglers are only known to walk in one direction. These enemies are both helpful and harmful. They do defeat Swoopers if they touch them, making it a little easier for Mario and his crew. Mega Wigglers can also be bounced on as if they are a Spring if the player (s) presses/press the 2 Button or A button on the Wii Remote. However, occasionally Mega Wigglers do end up blocking their path causing the heroes to move backward in only to survive until the Mega Wigglers can pass them safely. Mega Wigglers are also immune to Poison Water which none of the game's heroes are not. Near the end of the level, they are needed to cross the platforms and Poison Water before entering a Warp Pipe that takes them out of the cave. Sadly, Mega Wigglers cannot be defeated. Not even the Starman takes these big guys out. Also, Mega Wigglers have their helpful ways, however, they still hurt Mario and the crew if they come in contact with them. In Super Mario Galaxy 2, Mega Wigglers reappear in the Supermassive Galaxy, where they make there only appearance. They only appear on the Stone Tube Planet. They slowly walk about on the floor's circular platforms. One (or two) angry Mega Wigglers run about near the end of the planet. All these Mega Wigglers must be dodged in order to reach the Power Star on top of a pole. Like in New Super Mario Bros. Wii, these enemies cannot be defeated, so they must be avoided at all costs. If Mario/Luigi touches a Mega Goomba they will lose one wedge of health from their Health Meter. Just so you know, Mega Wigglers appear in the Supermassive Galaxy along with Grand Goombas, Piranhacus Giganticus, Super Thwomps, Gargantua Koopa Troopas and Huge Paragoombas. In Mario Kart Wii, giant-sized Wigglers appear in Maple Treeway, as well as certain competitions, however, they are not said to be Mega Wigglers.