Blooper

Bloobers are enemies in. They are directly based on the enemies from the  series.

Characteristics and Weaknesses
Bloobers are -like enemies that are encountered in an underwater passage of Catfish's Maw. Unlike Cheep-Cheeps, which slowly swim back and forth in a set path, Bloobers move in diagonal, lurching motions towards Link, making them harder to avoid. Bloobers only appear in one passageway leading to the dungeon's Nightmare Key, and always appear in pairs. Unlike their Mario counterparts, they can be dealt with easily using any weapon in Link's arsenal, with the Sword being the most immediately effective.

Etymology
Bloober is derived from Blooper, the enemy's name in the Mario series. This may possibly be a misspelling of the name.