This story is about a persistent battle between honest people and an evil force with the leadership of General Morden. Through many games, we have seen that our main characters have won many times, but after a short time, he and the ghost force continue to return, affecting the peaceful life of the people. As the main character, the player must surely destroy him to protect the world, no matter how many times.
In part 7, everything will start in a peaceful world without traces of war. The Battle scars were gradually recovering, the cities were reconstructed, and the army was built firmly. People here are dreaming of a complete day of Peace. But the truth is that the ghost army is rebelling and continuing to attack. Strange traces have been found on scouting of Garbage Island routine, signaling a future that is not bright. In this game, players continue to meet familiar friends in previous games like Marco, Fio, Tarma, Eri, along with Ralf and Clark. These characters carry many different powers that can be used in battle against the forces of General Morden.
The game has a simple operating mechanism when it is still primarily a platformer as the game will again move from left to right and fight on that road to overcome all obstacles. They will be able to equip themselves with the most advanced weapons to easily defeat the enemy. In Metal Slug 7, the developer has added up to 7 new missions; there are also six playable characters so that players can freely choose and fight. Besides, there are many weapons, and vehicles appear on the journey to add convenience to the player, more straightforward to overcome the game.