

The opening to the PlayStation 2 game shows Marco going Rambo on the enemy soldiers, Tarma slicing and dicing enemies with his knives, Eri disarming a bomb, and Fio engaging in a Showdown at High Noon with an enemy, who, after shooting a butterfly, is instantly shot by Fio.Even after 20 years, the series' detailed art and animation still looks amazing.

Given the series' obscene difficulty (especially 3), completing a Metal Slug game with a continue count of zero is an Awesome Moment. When you finish a particular game, it tallies how many continues you used.This is harder than it sounds, because you lose credit for every POW rescued up to that point if you die. Any time you manage to finish a mission with a special POW (Rumi Aikawa, Hyakutaro Ichimonji, et al.) counted.All to the tune of this remix of Final Attack. Then, at the end, you battle the Kraken which is controlled by Morden on top of lava. Upon destroying the portal, a massive machine comes from the portal and Morden gets inside of it.

7/XX has you fighting Morden's soldiers from the future and eventually reaching the time portal from which the Future Rebels came from.

Upon reaching the end, you must battle your Brainwashed and Crazy friend who's under the Invaders' control, and you battle the Invader Queen herself while driving a Golden Metal Slug. This mission also has a much darker version of Final Attack, signalling that the Invaders are much more dangerous than Morden or the Mars People.
