Rock 'Em Sock 'Em Robots

The Rock 'Em Sock 'Em Robots are two fighting robot toys (based off the real-life Marx Company toy) seen in Toy Story 2, which are owned by Al McWhiggin and kept in his office at Al's Toy Barn. While Buzz (who is really Deluded Buzz) and the rest of Andy's toys are searching Al's office for Woody, Slinky Dog asks the two fighters if they've seen him. The blue (Blue Bomber) one politely tells him no, but then the red one (Red Rocker) starts to argue with him over who was being asked and the two of them begin fighting, with the Blue Bomber defeating the Red Rocker one. They are voiced by the film's directors John Lasseter (Blue Bomber) and Lee Unkrich (Red Rocker).

In Buzz Lightyear's Laser Blast, one one Zurg's robots is based off the Red Rocker, complete with extending head.

Trivia

 * The same toy can be seen among Bob Parr's many mementos of his heroic days in The Incredibles.
 * One of the Rock 'Em Sock 'Em Robots has a partially missing ear, a reference to the notorious Mike Tyson - Evander Holyfield match, in which Tyson has bitten off a piece of Holyfield's ear.