A robot scorpion who guards the sector 1 mako reactor.
A misleading translation can lead players to attack while it's tail is up, triggering a powerful counterattack.
During the fight, Cloud will warn Barrett with the following lines:
"Attack while it's tail's up!"
"It's gonna counterattack with its laser."
Due to these lines being in separate speech bubbles and the exclamation point used in the first sentence, many players would mistakenly attack the boss while the tail is up in an attempt to stop the laser counterattack.