The Mil Grunt is the most commonly faced enemy in the game, incredibly unintelligent robots built for minor effect, grunts are constantly seen throughout every level in the game (With the exclusion of both boss battles). What they lack in intelligence they make up for in firepower in numbers, grunts have no seemingly normal squad amount, but rather the amount varies by type, suggesting a by-division military system. These typical soldiers are the backbone of the Mil Army that work to control Iron Star under command of General Corrosive.