The Slug Attacker is a modified Slug Gunner with self-repair capabilities. Being a Slug Gunner variant, it can switch between its attacking bipedal state (Human Mode) or a more defensive treaded state (Tank Mode) depending on the proximity of the enemy. The Slug Attacker has only one weapon, a long pile driver that can create explosive impacts on its tip.
In its tank form, the arm holding the pile driver rests in front of the windshield to shield itself from enemy attacks. The Slug Attacker's human form can also attempt to deflect attacks by lifting its shielded arm up.
Amber is currently the only rider of the Slug Attacker. Her red Slug does everything stated above. Her blue Slug cannot go into tank mode, but it can quickly charge onto the closest enemy to attack.