Alien Snappers (also known as Space Mutants) were alien foes found at the Blarg Research Station. They had a tough hide and bit reflexively at all attacks. They were often found in energy cages that the technician Fred said 'some nano-wit left open'. At the station, Ratchet encountered an Alien Queen, which was a huge version of the snappers.
An Alien Snapper was a piece in the board game Galactic Chess.