Overview
Metal Slug is a run and gun game reminiscent of Contra where players assume the role of captain Marco Rossi and lieutenant Tarma Roving of the Peregrine Falcon Strike Force, shooting constantly at a continual stream of enemies in order to complete each mission. At this point, players confront a boss, who is usually considerably larger and tougher than regular enemies. On the way through each level, players can find numerous weapon upgrades and the eponymous tanks. Known as the SV-001 and SV-002, the tanks increase the player's offense and add considerably to their defense.
In addition to shooting, players can perform melee attacks by using a knife. The player does not die by coming into contact with enemies, and correspondingly, many of the enemy troops have melee attacks. Much of the game's scenery is destructible, and occasionally, this reveals extra items or power-ups. During the course of a level, the player encounters prisoners of war (POWs), who, if freed, offer the player bonuses in the form of random items or weapons. At the end of each level, the player receives a scoring bonus based on the number of freed POWs. If the player dies before the end of the level, the tally of freed POWs reverts to zero. Getting hit by enemy fire, colliding against solid stage obstacles or falling off-stage will result in losing a life and once all lives are lost, the game is over unless players insert more credits into the arcade machine to continue playing.
