Galactic Chess was a board game. Ratchet and Clank played Galactic Chess in his apartment in Megapolis.
- If the opposing players' Blargian Snagglebeast could not escape being taken in the next turn, it was "checkmate" and the player won.
- The Blargian Snagglebeast had an allergic reaction to Swamp Flies which lasted two turns.
- It is most likely a modified parodized version of real world chess, where the pieces were named after enemies in the Ratchet & Clank games and the rules are quite similar.