Metal Slug 7

Metal Slug 7 is the eighth run and gun action shooting video game of the Metal Slug series. It was first released on the Nintendo DS, and was announced in the September 2007 issue of Famitsu, beside marks the first game in the main series to be released without an arcade version. The North American version of the game comes with a holographic paper cover and a small disc.

A revised version of the game, called Metal Slug XX, was released for the PlayStation Portable, Xbox Live Arcade, PlayStation 4 and Microsoft Windows (Steam).

Story
The game takes place before the events of Metal Slug 4. The Peregrine Falcon Strike Force, the SPARROWS and the Ikari Warriors Team are once again on a search for General Morden and his army. Their mission is to catch General Morden and prevent his attempts at another coup d'état on the government. However, as soon as Morden was defeated, a strange army from the future came to his aid and strengthened his army. Now, they must face Morden once again with his strengthened army and this time, put a stop to his plans once and for all.

Characters
The game has the same set of characters in Metal Slug 6 with the same abilities as its predecessor:

Gameplay
There are seven levels and three difficulties: Beginner, Normal and Hard. Metal Slug 7 uses the Nintendo DS' touchscreen as a map of the level, making it easier for the player to look at the level and where to get power ups or captured prisoners. The game also introduces the Prisoner's List menu and the return of Combat School mode which was originally from Metal Slug X. There, you can select specific aspects of stages which are not limited to item collecting, survival, and killing all the enemies on the map. You can also talk to your rather jaded drill instructor.

New Slugs
Three new vehicles are:
 * Slug Truck: A train-like machine that work similar to the Metal Slug except the cannon must be connected to the unit to access the cannon.
 * Slug Gigant: Slug Gigant is a giant robot that is capable of massive firepower. It's Wave cannon can neutralize enemy fire with its melee attack.
 * Slug Armor: Has both Vulcan and cannon. Can slide at high speed.

Trivia

 * This game, Metal Slug 6, Metal Slug XX and Metal Slug Defense are the only game of the series to receive characters from the other franchises, whether from the company itself or from other companies.
 * This makes the game, along with Samurai Shodown (2019), Art of Fighting 2 and Fatal Fury Special the only non-crossover games to receive characters from the other franchises.