From the Super Mario Wiki
The Big Scuttlebug is the rare colossal version of the Scuttlebug, being many times normal size.
Mario Party 7
A giant Scuttlebug first appears in Mario Party 7 in the minigame Spider Stomp. It is fought at the end of the minigame. It attacks players by shooting three webs at them and can charge at the players. After this Scuttlebug is defeated, the player's team can find Flutter before the other team does.
Paper Mario: Sticker Star
The Big Scuttlebug is a mini-boss appearing in Paper Mario: Sticker Star. It is encountered in Rustle Burrow and blocks the door that leads to Kersti after Mario loses her, along with his items, during the drop into the level.
The battle starts off with the Big Scuttlebug going onto a web. Using a jump attack on the web will make Mario get caught in it, making him vulnerable to the Big Scuttlebug's crumpling attack. The web is also vulnerable to projectile attacks, such as those of the Fire Flower and Ice Flower sticker. After the Big Scuttlebug is off its web, it attacks like a normal Scuttlebug. Once it has been defeated, Mario can gain access to the room where Kersti is being held.
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