Blooper

Bloopers are white squid-like beings that first appear in Super Mario Bros. as underwater enemies that would attack by chasing the player and trying to touch them. Later games would give Bloopers a multitude of powers, including flight and the ability to expel ink and electricity.

Large Bloopers occasionally appear as bosses in various games, notable examples being King Kalimari (possibly), Gooper Blooper and Big Blooper. Though usually depicted as antagonists, Blooper occasionally have other roles, such as items and as a playable character, such as in Mario Party 8, which is its first appearance in such a role.

The first appearance of Bloopers outside video games was in the anime film Super Mario Bros.: Peach-Hime Kyushutsu Dai Sakusen!, where a giant Blooper appears inhabiting a sunken ship. Bloopers also regularly appear in The Super Mario Bros. Super Show! and The Adventures of Super Mario Bros. 3 as enemy creatures, most commonly in episodes dealing with an underwater theme.