Metal Slug Fighters is a game released in South Korea for mobiles phones. The playable characters are Marco, Tarma, Eri, Fio, Clark and Ralf. The goal is to stop General Morden and his Rebel Army. In the game's Final Mission, the Mars People will help the player against the final boss. When the final boss is defeated, one of the Mars people sacrifices itself in a similar way to how a rebel soldier sacrifices himself in Metal Slug 2/X.