Pikmin Chain is a move that Olimar can perform in Super Smash Bros. Brawl for the Wii. The move is their recovery move, and it will be more successful if Olimar has plucked more Pikmin from the ground to use on the battlefield.
When used, all of the Pikmin in your group will hook together and will jump with all of their might to get back up to the ledge. The less Pikmin you have, the less chance you have at having a successful recovery.
This is the only one of Olimar's special moves that did not come from the Pikmin Series.