Slug 'em Up! is an arena combat game where players take control of a mechanized snail war machine to defeat slimy opponents. Each snail shell is equipped with a salt-firing machine gun, turbo thrusters, and a slug-based special attack cannon. By collecting and using slug minions which loyally flock behind the player, snails can unleash a variety of exciting special attacks. Bombs, missile barrages, giant slugs, and burst-attacks are just a few of the weapons in each snail's arsenal.