History Awesome / MetalSlug

** ''5'' has you start the final mission in a driving stage where you must leap from highway to highway, ending at a war-torn city and an abandoned subway. After that, you end up in some sort of factory then a castle and when you reach the end, you fight this [[absolutely MASSIVE demon GiantSpaceFleaFromNowhere]], the Avatar of Evil, [[https://www.youtube.com/watch?v=yxcnFZ2Z6cQ to the tune of this AWESOME remix of Final Attack.]]

*** At the end, the Rugname is about to fire its WaveMotionCannon again... only for a Rebel pilot to [[HeroicSacrifice fly into it]], destroying it and freeing Morden.

** ''2/X'' has you fighting against the Mars People. When you reach the end, the Mars People betray the Rebels and abduct Morden. And you have to fight off the Mars People in their giant mothership, the Rugname. Also, the battle has the Rebel Army aiding you against the mothership, this being the first time in the entire series that the Rebel Army helps you. Also, their shots all count on the final boss. Let's not forget that the whole battle with the Rugname is a ShoutOut to ''Film/IndependenceDay''...

** The original has you fighting your way through Morden's soldiers [[SugarWiki/AwesomeMusic to the tune of]] [[https://www.youtube.com/watch?v=AwRXHzTGgQ4 Final Attack]], eventually falling off a bridge and onto a boat. From there, the boat reaches an island where you have the final showdown with Morden himself in his helicopter.
** ''2/X'' has you fighting against the Mars People. When you reach the end, the Mars People abduct Morden and you have to fight off the Mars People in their giant mothership. Also, the battle has the Rebel Army aiding you against the mothership, this being the first time in the entire series that the Rebel Army helps you. Also, their shots all count on the mothership. Let's not forget that the battle with the mothership is a ShoutOut to ''Film/IndependenceDay''...
** ''3'' is known for having [[MarathonLevel one of the longest]] [[ThatOneLevel and hardest missions in the entire series]]. You go through a long dogfight with Morden, Allen, and the enemies, eventually fighting Morden himself in a remake of the original's final boss battle... Only to discover that that Morden is actually a Martian in disguise and he abducts your character. You then go to space and storm the Mars People's mothership, freeing Morden and your captured character in the process, and finally ending with a [[FreeFallFight free falling climactic battle]] with the leader of the Mars People, Rootmars.
** ''4'' has you rappelling down Amadeus's base ''Film/MissionImpossible'' [[MissionImpossibleCableDrop style]], fighting against enemies and scientists that fire bullets which turn you into a monkey if shot. However, being a monkey gives you unlimited Heavy Machine Gun ammo, and you face Allen O'Neal again [[spoiler: [[RoboticReveal except he's a robot]].]] Then you have the final showdown with Amadeus himself, and after defeating Amadeus, [[LoadBearingBoss you must then escape the exploding base!]]
** ''5'' has you start the final mission in a driving stage where you must leap from highway to highway, ending at a war-torn city and an abandoned subway. After that, you end up in some sort of factory then a castle and when you reach the end, you fight this GiantSpaceFleaFromNowhere, the Evil Spirit Incarnate, [[https://www.youtube.com/watch?v=yxcnFZ2Z6cQ to the tune of this awesome remix of Final Attack.]]
** ''6'' has you going underground into the Invaders' hive, and to make it better, both Morden's infantry and the Mars People will lend you a hand for this mission. This mission also has a much [[DarkReprise darker version]] [[https://www.youtube.com/watch?v=H_oHAbmOSSM of Final Attack]], signalling that [[TheWorfEffect the Invaders are much more dangerous than Morden or the Mars People]]. Upon reaching the end, you must battle your BrainwashedAndCrazy friend who's under the Invaders' control, and you battle the Invader Queen herself while driving a golden Metal Slug.

* [[https://www.youtube.com/watch?v=e3Rmi63G7Ww The opening]] to the PS2 game shows Marco going Franchise/{{Rambo}} on the enemy soldiers, Tarma slicing and dicing enemies with his knives, Eri disarming a bomb, and Fio engaging in a ShowdownAtHighNoon with an enemy, who, after shooting a butterfly, is instantly shot by Fio.

** ''6'' has you going underground into the Invaders' hive, and to make it better, both Morden's infantry and the Mars People will lend you a hand for this mission. This mission also has a much [[DarkReprise darker version]] [[https://www.youtube.com/watch?v=H_oHAbmOSSM of Final Attack]], signalling that [[TheWorfEffect the Venusians are much more dangerous than Morden or the Mars People]]. Upon reaching the end, you must battle your BrainwashedAndCrazy friend who's under the Invaders' control, and you battle the Invader Queen herself while driving a golden Metal Slug.

** ''6'' has you going underground into the Venusians' hive, and to make it better, both Morden's infantry and the Mars People will lend you a hand for this mission. This mission also has a much [[DarkReprise darker version]] [[https://www.youtube.com/watch?v=H_oHAbmOSSM of Final Attack]], signalling that [[TheWorfEffect the Venusians are much more dangerous than Morden or the Mars People]]. Upon reaching the end, you must battle your BrainwashedAndCrazy friend who's under the Venusians' control, and you battle the Venusian Queen herself while driving a golden Metal Slug.

* Even after 20 years, the series' [[SugarWiki/VisualEffectsOfAwesome detailed art and animation]] still looks amazing.

* Even after 20 years, the series' [[VisualEffectsOfAwesome detailed art and animation]] still looks amazing.

** The original has you fighting your way through Morden's soldiers [[CrowningMusicOfAwesome to the tune of]] [[https://www.youtube.com/watch?v=AwRXHzTGgQ4 Final Attack]], eventually falling off a bridge and onto a boat. From there, the boat reaches an island where you have the final showdown with Morden himself in his helicopter.

** ''5'' has you start the final mission in a driving stage where you must leap from highway to highway, ending at a war-torn city and an abandoned subway. After that, you end up in some sort of factory then a castle and when you reach the end, you fight this GiantSpaceFleaFromNowhere, the Scyther, [[https://www.youtube.com/watch?v=yxcnFZ2Z6cQ to the tune of this awesome remix of Final Attack.]]

** ''4'' has you rappelling down Amadeus's base ''Film/MissionImpossible'' style, fighting against enemies and scientists that fire bullets which turn you into a monkey if shot. However, being a monkey gives you unlimited Heavy Machine Gun ammo, and you face Allen O'Neal again [[spoiler: [[RoboticReveal except he's a robot]].]] Then you have the final showdown with Amadeus himself, and after defeating Amadeus, [[LoadBearingBoss you must then escape the exploding base!]]

* When you finish a particular game, it tallies how many continues you used. Given the series' [[NintendoHard obscene difficulty]] (especially ''3''), completing a ''Metal Slug'' game with a continue count of ''zero'' is an Awesome Moment.

** ''6'' has you going underground into the Venusians' hive, and to make it better, both Morden's infantry and the Mars People will lend you a hand for this mission. This mission also has a much [[DarkReprise darker version]] [[http://www.youtube.com/watch?v=H_oHAbmOSSM of Final Attack]], signalling that [[KnightOfCerebus the Venusians are much more dangerous than Morden or the Mars People]]. Upon reaching the end, you must battle your BrainwashedAndCrazy friend who's under the Venusians' control, and you battle the Venusian Queen herself while driving a golden Metal Slug.

* When you finish a particular game, it tallies how many continues you used. Given the series' obscene difficulty (especially ''3''), completing a ''Metal Slug'' game with a continue count of ''zero'' is an Awesome Moment.

** ''7/XX'' has you fighting Morden's soldiers from the future and eventually reaching the time portal from which the Future Rebels came from. Upon destroying the portal, a massive machine comes from the portal and Morden gets inside of it. Then, at the end, you battle the Kraken which is controlled by Morden ''[[ClimacticVolcanoBackdrop on top of lava]]''. All to the tune of [[http://www.youtube.com/watch?v=hYJTNdO2LHI this remix of Final Attack]].

** ''2/X'' has you fighting against the Mars People. When you reach the end, the Mars People abduct Morden and you have to fight off the Mars People in their giant mothership. Also, the battle has the Rebel Army aiding you against the mothership, this being the first time in the entire series that the Rebel Army helps you. Also, their shots all count on the mothership. Let's not forget that the battle with the mothership is a ShoutOut to ''IndependenceDay''...

** ''4'' has you rappelling down Amadeus's base ''MissionImpossible'' style, fighting against enemies and scientists that fire bullets which turn you into a monkey if shot. However, being a monkey gives you unlimited Heavy Machine Gun ammo, and you face Allen O'Neal again [[spoiler: [[RoboticReveal except he's a robot]].]] Then you have the final showdown with Amadeus himself, and after defeating Amadeus, [[LoadBearingBoss you must then escape the exploding base!]]

** ''6'' has you going underground into the Venusians' hive, and to make it better, both Morden's infantry and the Mars People will lend you a hand for this mission. This mission also has a much [[DarkerAndEdgier darker version]] [[http://www.youtube.com/watch?v=H_oHAbmOSSM of Final Attack]], signalling that the Venusians are much more dangerous than Morden or the Mars People. Upon reaching the end, you must battle your BrainwashedAndCrazy friend who's under the Venusians' control, and you battle the Venusian Queen herself while driving a golden Metal Slug.

** ''3'' is known for having [[MarathonLevel one of the longest]] [[ThatOneLevel and toughest missions in the entire series]]. You go through a long dogfight with Morden, Allen, and the enemies, eventually fighting Morden himself in a remake of the original's final boss battle... Only to discover that that Morden is actually a Martian in disguise and he abducts your character. You then go to space and storm the Mars People's mothership, freeing Morden and your captured character in the process, and finally ending with a [[FreeFallFight free falling climactic battle]] with the leader of the Mars People, Rootmars.

** ''4'' has you rappelling down Amadeus's base ''MissionImpossible'' style, fighting against enemies and scientists that fire bullets which turn you into a monkey if shot. However, being a monkey gives you unlimited Heavy Machine Gun ammo, and you face Allen O'Neal again [[spoiler: [[RoboticReveal except he's a robot]].]] Then you have the final showdown with Amadeus himself, and after defeating Amadeus, you must then escape the exploding base!

** ''4'' has you rappelling down Amadeus's base ''MissionImpossible'' style, fighting against enemies and scientists that fire bullets which turn you into a monkey if shot. However, being a monkey gives you unlimited Heavy Machine Gun ammo, and you face Allen O'Neal again [[spoiler: except he's a robot.]] Then you have the final showdown with Amadeus himself, and after defeating Amadeus, you must then escape the exploding base!

** ''3'' is known for having [[MarathonLevel one of the longest]] [[ThatOneLevel and toughest missions in the entire series]]. You go through a long dogfight with Morden, Allen, and the enemies, eventually fighting Morden himself in a remake of the original's final boss battle... Only to discover that that Morden is actually a Martian in disguise and he abducts your character. You then go to space and storm the Mars People's mothership, freeing Morden and your captured character in the process, and finally ending with a climactic battle with the leader of the Mars People, Rootmars.

** ''3'' is known for having [[MarathonLevel one of the longest missions in the entire series]]. You go through a long dogfight with Morden, Allen, and the enemies, eventually fighting Morden himself in a remake of the original's final boss battle... Only to discover that that Morden is actually a Martian in disguise and he abducts your character. You then go to space and storm the Mars People's mothership, freeing Morden and your captured character in the process, and finally ending with a climactic battle with the leader of the Mars People, Rootmars.

** ''4'' has you rappelling down Amadeus's base ''MissionImpossible'' style, fighting against enemies and scientists that fire bullets which turn you into a monkey if shot. However, being a monkey gives you unlimited Heavy Machine Gun ammo, and you face Allen O'Neal again [[spoiler: except he's a robot.]] Then you have the final showdown with Amadeus itself, and after defeating Amadeus, you must then escape the exploding base!

** ''3'' is known for having one of the longest missions in the entire series. You go through a long dogfight with Morden, Allen, and the enemies, eventually fighting Morden himself in a remake of the original's final boss battle... Only to discover that that Morden is actually a Martian in disguise and he abducts your character. You then go to space and storm the Mars People's mothership, freeing Morden and your captured character in the process, and finally ending with a climactic battle with the leader of the Mars People, Rootmars.

** ''6'' has you going underground into the Venusians' hive, and to make it better, both Morden's infantry and the Mars People will lend you a hand for this mission. This mission also has a much [[DarkerAndEdgier darker version [[http://www.youtube.com/watch?v=H_oHAbmOSSM of Final Attack]], signalling that the Venusians are much more dangerous than Morden or the Mars People. Upon reaching the end, you must battle your BrainwashedAndCrazy friend who's under the Venusians' control, and you battle the Venusian Queen herself while driving a golden Metal Slug.

** The original has you fighting your way through Morden's soldiers to the tune of [[CrowningMusicOfAwesome Final Attack]], eventually falling off a bridge and onto a boat. From there, the boat reaches an island where you have the final showdown with Morden himself in his helicopter.

** ''6'' has you going underground into the Venusians' hive, and to make it better, both Morden's infantry and the Mars People will lend you a hand for this mission. Upon reaching the end, you must battle your BrainwashedAndCrazy friend who's under the Venusians' control, and you battle the Venusian Queen itself while driving a golden Metal Slug.

** ''2/X'' has you fighting against the Mars People. When you reach the end, the Mars People abduct Morden and you have to fight off the Mars People in their giant mothership. Let's not forget that the battle with the mothership is a ShoutOut to ''IndependenceDay''...

** ''4'' has you rappelling down Amadeus's base ''MissionImpossible'' style, fighting against enemies and scientists that fire bullets which turn you into a monkey if shot. However, being a monkey gives you unlimited Heavy Machine Gun ammo, and you face Allen O'Neal again [[spoiler: except he's a robot.]] Then you have the final showdown with Amadeus itself, and after defeating Amadeus, you must then escape the exploding base!