Metal Slug 10 - All Out War (Lord Moogoo)

Metal Slug 10 - All Out War is the final mainstream Metal Slug console game, released by Tencent and SNK Playmore. It is intended as the finale for the Metal Slug series, where the Perigrene Squad and all the other local forces unite to stop a universal ending threat. Nonetheless, they may release a new series of games with a newer generation of characters.

It takes place after Metal Slug 9 (Lord Moogoo), where we last saw General Morden attempt to escape the Elder One's floating fortress. He was supposed to land back on Earth, where he would hunt Abigail and her army down for their treason. However, he was destined somewhere else...

Story Synopsis
It had been a long trip for General Morden. Locked in a Rebel Capsule, frozen in a capsule holding pod and lobbed across space for 6 years, he finally thawed out and was horrified to see his capsule had never headed back to Earth. He dreaded what had happened to his army without him at their command. It was then when he saw a planet and a huge ship heading towards him. The massive battleship extended a claw and beamed him up into the ship. When Morden got out, he saw Marco Rossi holding a pistol at him. However, to his surprise, Marco was wearing advanced alien type Rebel uniform. Somehow, the Morden of this universe had conquered more than planets, he had conquered entire universes !

Emperor Morden, the leader of the Neo Rebels had established a universal grip and crushed all in his way. In this universe, Marco and the Perigrene squad were indoctrinated early into his cause, and became reckless bounty hunters. The Perigrenne Squad was not known for their peace and uphold of the law, but instead instilling terror and bloodshed to any who resisted. Emperor Morden used alien technology to revive his wife and child, but they ended up mutated and lifeless. In rage, looking for a cure, he enslaved Martians, Zemararians, Ironstions and other alien species and extracted their bodily fluids. With all his slaves, Emperor Morden was able to mindwipe and dominate entire races with his omnipotent army. Now, he plans to warp to a new universe, where our current universe is. If he isn't stopped, it will be all over. Now, we must all unite to stop this threat.

On our current Earth, the Regular Army has refounded the U.N. and most governments exist back to their prior states. The Rebel Army is nothing but a relic of the past. Abigail had to escape after her Rebel Army disintegrated into warring factions and sought asylum, but was captured by the Regular Army. One day, however, the sun began to fall earlier than normal. Without the sun, crops began to die and temperatures began to decrease quickly. Emergency shelters were opened as the hospitable surface became barren, while the Peregrine forces dispatched across the globe to find the potential culprits. What they once thought was a rebel satelite cannon was infact a large space cruiser, found thanks due to Trevor Spacey's technlogy.

It was there, where a large broadcast appeared on the Moon. Emperor Morden sat on his throne, gleaming with evil intent, simply saying "Surrender or Die." You have 7 days to consider." The screen cuts to black and a countdown begins. The U.N. held an emergency meeting, and realized that the Regular Army was not enough. It was there, where the Martians and other Alien species began to make contact, concerned about their whole situation. They decided to make the Intergalactic Unity Squad and band together, united against this invading force. Abigail had been enlisted to the Regular Army, and began to talk to Allen O Neil. While they had bad relationships before, they had to work together to save them all. And maybe General Morden might forgive them...

But, even with all their power, it may not be enough...

At the end, General Morden battles Emperor Morden. While he manages to win, he is mortally wounded and dies. He holds a picture of his wife and child in his hands as a tear comes out of his eye. As Emperor Morden dies, he activates a nuclear detonator embedded in his heart. Thus, the united forces make a run for their lives as the Emperor's Battleship explodes. In the worst ending, Emperor Morden conquers the universe, holding the decapitated heads of Marco and Eri. In the bad ending, everyone dies in the explosion, leaving the Earth to fall back under chaos. In the neutral ending, the Regular Army makes it home, but the main character dies, and they mourn their loss. In the good ending, they managed to save the planets enslaved by Emperor Morden and arrive home. Throwing away their war helmets, the Perigrenne squad ceased to exist as the war truely ended. They proceeded to each have a family and live happy lives, free from war. Abigail and Trevor became engaged. A cracked war helmet lies on General Morden's grave under the stars, with soldiers saluting it. Now, hopefully the peace can truly last.

Gameplay
Metal Slug 10 functions simlarly to it's predecessors, consisting of run and gun platforming, some puzzle sections, but also introduces a time-based countdown. While you have infinite lives, losing a life will decrease the clock by 1 hour. You have 7 days (144 hours), and each mission will consume 5 hours to complete. If the clock reaches zero, you can play a bonus stage to gather up to 20 hours back, but this can only occur once. If the clock reaches zero, you can still play the game to the end, but you will get the bad ending. You might gather some items that may also grant some extra hours in your mission.

Metal Slug 10 features several new weapons, along with utility boxes, such as service stations to replenish ammo or a flying drone. Depending on your weapon choices and missions you complete, Emperor Morden will alter his forces to combat your tactics. For example, if you use Fire Weapons in one stage, he will counter with his own Fire-Based army.

At any point, you can switch between the Regular, Splinter Group and Alien groups. As you progress along the mission, they will assist you during large group assaults by Morden's troops. The upgrade store can also improve their stats and equipment.