Cassius 2 is a heavyweight robot that competed in Robot Wars: The Third Wars after its predecessor, Cassius, finished runner up in the previous series. Its defeat at the hands of Pussycat was considered one of the biggest shocks of the series. Cassius 2 makes its first and only video game appearance in the Game Boy Advance game Robot Wars: Advanced Destruction. It is interesting that Cassius 2 appears in this game, seeing as the game is based upon Robot Wars: The Fourth Wars, which Cassius 2 did not compete in, and in fact Rex Garrod had retired after the previous series in protest of the series' safety regulations (see Garrod's Protest).