Metal Slug (series)

Metal Slug (series)
Genre	Run and gun
Platform	Arcade; Neo Geo; Sega Saturn; PlayStation consoles; Xbox consoles; Nintendo consoles; Windows; MacOS; iOS/Android
Developer	SNK
Country	Japan
Release date	April 19, 1996; (First release)
Wikipedia

Metal Slug is a run and gun video game series created by SNK. It focuses on the adventures of Peregrine Falcon Squad, a crack team of commandos who battle aliens, dictators, and other factions bent on world domination.

Fitting in with the series' cartoony bent, eating 16 pieces of food causes your character to spontaneously gain weight. Power is increased while speed is greatly lowered, and humorous changes are made to the character's animations, including using a fork instead of a knife as a melee weapon. The transformation wears off eventually on its own, but can be cured quicker with a diet pill or barrel of diet formula.

Metal Slug 2/X

This is the first Metal Slug game to feature the fat transformation. In Metal Slug 2, it only occurs in Mission 4, while in the remastered Metal Slug X, it is possible to get fat in every level from Mission 3 onwards.

Fat Fio in mission 4 of Metal Slug 2
Fat Eri in mission 3 of Metal Slug X
Fat Fio in mission 4 of Metal Slug X
Preliminary designs for the "Chubby Gun" along with some Chibi illustrations of Fat Eri and Fat Fio

Metal Slug 3

The fat transformation reappears in this game in Missions 1, 4 and the Final Mission.

Fat Tarma in Final Mission Part 2

Also, barely noticable, appearing only for literal fractions of seconds are enemy inflations - some of the mutant enemies expand. The small maggots inflate when killed before bursting, and so do the flying piranha.

Metal Slug 4

Once again the fat transformation reappears, but only in Mission 3. At the end of the game, if you successfully escape from Amadeus's exploding secret base, you'll get the Good Ending on where Marco, Fio, Trevor and Nadia overeats in a buffet, with obvious results.

Fat Trevor in mission 3
Good Ending

Metal Slug 5

The fat reappears for the last time in the official series only on mission 1

Fat Marco in mission 1

Metal Slug 6

The Smashers are enemies that appears in the game's Final Mission, they can inflate to (as their name says) smash you from above.

An Smasher inflated

Metal Slug Anthology

Concept art of a fat Eri appears in one of the game's unlockable art galleries.

Metal Slug 3 Pachinko

In one cutscene, Fio eats a lot of food, resulting in her getting fat.

Metal Slug Defense

Fat Marco, Fat Eri, Fat Tarma and Fat Fio are available as unlockable characters. To get them you must rescue all the P.O.W.s from the Alternative World by beating the bosses on Monday, Tuesday, Wednesday and Thursday.

Metal Slug Attack

Two Extra OPS called Food Army and Food Army 2nd gives the fat versions of the Main Heroes as main units.

Food Army gives Fat Marco and Fat Tarma from November 17, 2016 to November 20, 2016
Food Army 2nd gives Fat Eri and Fat Fio from January 20, 2017 to January 23, 2017
Since the 2.13.0 update, they can be optained from the Mars Shop.

An upgraded version of Fat Eri called Special Fat Eri wasadded on 2.21.0 update as part of the Expert Units for the Extra OPS "Hero of Justice". An upgraded version of Fat Tarma called Special Fat Tarma was added on 3.0.0 update as part of the Expert Units for the Extra OPS "United Front the 3rd".They can obtained via the P.O.W. Rescue Shop. Finally, an upgraded version of Fat Marco called Special Fat Marco was added on 3.8.0 update as part of the Expert Units for the Extra OPS "United Front the 7th". Unlike the others, he is obtaned via the Mystery Crank.

Neo Geo Battle Coliseum

In this Crossover game between SNK and its cousin company ADK, the Metal Slug Franchise is represented by Marco and the Mars People. One of Marco's moves is called Breakfast which is clearly a reference to the Fat Form. It allows Marco recover some health in battle.