Mercs is one of those games that's instantly fun to play, with bullets and bodies flying all over the place, and there are hordes of enemies to mow down.
The game is set four years after Arthur rescued Princess Guinevere (Prin Prin) from the demon Loki (Lucifer). They are engaged, and are about to get married. While spending a quiet moment Guinevere is suddenly kidnapped by a Red Guard.
You are in control of a Predator who receives a distress call from Vega 4 of an attack on the city of New Shangi. Your goal is to wipe out all of the aliens before advancing to the next level.