History Fridge / MetalSlug

* In [[FanRemake 5 Elite]], the second boss careens out of the sky uncontrolled after you blow the everliving shit out of it. Then your character dives below the clouds for the end-of-level score tally to reveal [[DestructiveSaviour there's a huge city spanning from horizon to horizon]].

** Scientist zombies weren't injured before zombification yet have the lowest health of all zombies. As they might have taken the antidote (which they carry) before, the virus can't zombify them to the extent where they get high durability.

** Alien Zombie Clones are imperfect clones of your character, thus they're extremely durable but not invincible due to clone imperfections.

** Most of the civilian zombies used to be injured people, and as such their bodies aren't as durable.

** The player character is healthy before turning, which means their bodies are intact and relatively tough when as a zombie.

* It appears strange that the player characters as zombies are immune to conventional damage, while enemy zombies (and your zombie clones) aren't. Though, there may be a reason why -- The player character is healthy before turning, while most of the civilian zombies used to be injured people, and as such their bodies aren't as durable. The Rebel Soldier zombies were turned a good while ago, and the deterioration over time makes their bodies break apart more easily (as shown in their SuicideAttack) but since their bodies were intact, they can take more damage. Tar Men were also turned a good while ago (indeed, pre-zombification Tar Men are never encountered) and their bodies have rotted to a state where they're not invulnerable. Finally, the Alien Zombie Clones are imperfect clones of your character, thus they're extremely durable but not invincible due to clone imperfections. The only outliers here are the scientist zombies, who weren't injured before zombification yet have the lowest health amongst all zombies.

* It appears strange that the player characters as zombies are immune to conventional damage, while enemy zombies (and your zombie clones) aren't. Though, there may be a reason why -- The player character is healthy before turning, while most of the civilian zombies used to be injured people, and as such their bodies aren't as durable. The Rebel Soldier zombies were turned a good while ago, and their condition makes their bodies break apart more easily (as shown in their SuicideAttack) but since their bodies were intact, they can take more damage. Tar Men were also turned a good while ago (indeed, pre-zombification Tar Men are never encountered) and their bodies have rotted to a state where they're not invulnerable. Finally, the Alien Zombie Clones are imperfect clones of your character that were zombified, thus they're extremely durable, but not invincible thanks to the imperfection. The only outliers here are the scientist zombies, who weren't injured before zombification yet have the lowest health amongst all zombies.

* It appears strange that the player characters as zombies are immune to conventional damage, while enemy zombies (and your zombie clones) aren't. Though, there may be a reason why -- The player character is healthy before turning, while most of the civilian zombies used to be injured people, and as such their bodies aren't as durable. The Rebel Soldier zombies were turned a good while ago, and their condition makes their bodies break apart more easily (as shown in their SuicideAttack) but since their bodies were intact, they can take more damage. Tar Men were also turned a good while ago (indeed, pre-zombification Tar Men are never encountered) and their bodies have rotted to a state where they're not invulnerable. Finally, the Alien Zombie Clones are imperfect clones of your character that were zombified, thus they're extremely durable, but not invincible. The only outliers here are the scientist zombies, who weren't injured before zombification yet have the lowest health amongst all zombies.

* In Mission 3 of ''Metal Slug 3'', there are underwater wreckage of tanks that spawn SeaMine enemies. Why would a land-based Rebel Army Tank be holding sea mines within?
* The Kraken and its tentacles in ''Metal Slug 7/XX'' is capable of traveling under magma with no harm whatsoever. Yet, the Flame Shot which is clearly less hot than magma is still capable of damaging it.

* The Kraken and its tentacles in ''Metal Slug 7/XX'' is capable of traveling under lava with no harm whatsoever. Yet, the Flame Shot which is clearly less hot than magma is still capable of damaging it.

* In Mission 3 of ''Metal Slug 3'', there are underwater wreckage of tanks that spawn SeaMine enemies. Why would a land-based Rebel Army Tank be holding sea mines within?

* In Mission 2 of ''Metal Slug 3'' and Mission 4 of ''Metal Slug 4'', the zombies turn humans (including the player character) into zombies via ejecting globs of infectious vomit/body fluids. The best way to avoid it is to crouch right in front of the zombie (it'll go over you) -- and a good number of them have the disgusting orange stuff drip out in front of them from their mouth/head/intestines after they perform the attack. Furthermore, killing said zombies makes them ''explode'' into the stuff. Yet, none of that will harm the player despite how infectious it is, only the globs of vomit they throw at you will.

* In Mission 2 of ''Metal Slug 3'' and Mission 4 of ''Metal Slug 4'', the zombies turn humans (including the player character) into zombies via ejecting infectious body fluids. The best way to avoid it is to crouch right in front of the zombie -- and a good number of them have the disgusting orange stuff drip in front of them from their mouth/head/intestines after they perform the attack. Furthermore, killing said zombies makes them ''explode'' into the stuff. Yet, none of that will harm the player, only the globs of vomit they throw at you will.

* When encountering Mummies and Zombies in 2,3, and 4, if you don't react quickly enough they will infect the fleeing civilians that are in the background, forcing you to perform a MercyKill on them. However, when your character gets infected, he/her can return to normal again by picking up a Potion/First-aid kit. Meaning that those poor infected civilians could have easily been cured, yet our heroes simply didn't bother to do so and simply killed them to save time.

* In [[FanRemake 5 Elite]], the second boss careens out of the sky uncontrolled after you blow the everliving shit out of it. Then your character dives below the clouds for the end-of-level score tally to reveal [[DestructiveSaviour there's a huge city spanning from horizon to horizon]].

** The zombie cure is also in scarce amounts, considering that only doctors drop them. Said still-human doctors don't use them on the zombies since they're too afraid to become one of them -- indeed, the level begins with a group of still-human doctors fleeing the scene.

** The zombie cure is also in scarce amounts, considering that only zombiefied doctors drop them. Said doctors don't use them on the zombies since they're too afraid to become one of them -- indeed, the level begins with a group of still-human doctors fleeing the scene.

** The zombie cure is also in scarce amounts, considering that only zombiefied doctors drop them. Said doctors don't use them on the zombies since they're too afraid to (indeed, the level begins with a group of still-human doctors fleeing the scene).

* When encountering Mummies and Zombies in 2,3, and 4, if you don't react quickly enough they will infect the fleeing civilians that are in the background, forcing you to perform a MercyKill on them. However, when your character gets infected, he/her can return to normal again by picking up a Potion/First-aid kit. Meaning that those poor infected civilians could have easily been cured, yet our heros simply didn't bother to do so and simply killed them to save time.

* In the original game, during the mission in the town, when you destroy the windows and doors of the houses you can see inside them, and they are without exception, filled with the bodies of dead civilians. Implying that they were either [[ObligatoryWarCrimeScene massacred by the rebels before you arrived]], or that they are [[WarisHell unintentional collateral damage from the destruction that you cause when you were shooting your way through the town]].

* In [[UpdatedRerelease 5 Elite]], the second boss careens out of the sky uncontrolled after you blow the everliving shit out of it. Then your character dives below the clouds for the end-of-level score tally to reveal [[DestructiveSaviour there's a huge city spanning from horizon to horizon]].

* In the original game, during the mission in the town, when you destroy the windows and doors of the houses you can see inside them, and they are without exception, filled with the bodies of dead civilians. Implying that they were either [[ObligatoryWarCrimeScene massacred by the rebels before you arrived]], or that they are [[WarisHell unintentional collateral damage from the destruction that you cause when you were shooting your way through the town]].

* The presence of time traveling future rebels in 7/XX implies that even with the hero's efforts throughout the 8 games, the world of MetalSlug is stuck in a ForeverWar that will last into the far future with no end in sight. The fact that the ending of 7/XX concluded with Morden [[JokerImmunity (once again)]] escaping seems to further confirm this.

** In X, some of the mummified workers will revert back to workers when killed before running away. So it's not all that bad.

* When encountering Mummies and Zombies in 2,3, and 4, if you don't react quickly enough they will infect the fleeing civilians that are in the background, forcing you to perform a MercyKill on them. However, when your character gets infected, he/her can return to normal again by picking up a Potion/First-aid kit. Meaning that those poor infected civilians could have easily been cured, yet our heros simply didn't bother to do so and simply killed them to save time.