The SM-20 Hisser mecha is a Gokian war machine which occupies the role of heavy anti-personelle firepower against soft targets. It is designed for Gokiburi bodies but can theoretically be retrofitted for non-quadruped races with no changes to its exterior design. Large sized, the cockpit protects its user from harm completely while in use, though once the suit itself reaches 0 hp, the suit is useless and must be abandoned at once. When damaged, it sprays biological fluids which are its power source and rather toxic to the environment, so care must be taken around destroyed units.