The Crab Tank is a one-man, multi-purpose crab-like vehicle created and very frequently piloted by Doctor Undergear as a personal means of transportation and attack vehicle.
Role in the series
The Crab Tank first appeared in the episode "The Legion of Pirate Villains!"Doctor Undergear uses it during his first attack against Jake and his crew on Never Land when he join forces with the Grim Buccaneer,Captain Hook and ShiverJack to create the Legion of Pirate Villains to uncover Captain Colossus's treasure of ultimate power before Jake and his crew finds it.During the battle with Jake and his crew Undergear was tricked by Izzy using her Pixie Dust she is able to knock the mad scientist out of the tank sending flying far out of Undergear's reach much to his dismay.The Crab Tank isn't seen for the rest of the episode.
In the episode "Crabageddon!" Doctor Undergear soon finds his space on Gear Island isn't enough for him and his mechanical minions and soon set his eyes on King Crab Island as his new lair.The Crab Tank reapers as Doctor Undergear main means of transportation alongside his army of Crab Bots in hostile takeover attempt Crab Island.The Crab Pirates,King Crab and his son Crab Louie tried defend there island from Undergear and his minions but the mad doctor proved to powerful for the crabs.King Crab soon recruits the aid of Jake and his crew to put a stop to the mad doctors wicked scheme.