Mega Man X is the first entry in the Mega Man X series, released on the Super Nintendo on December 17 1993 in Japan, January 1994 in North America, and May 1994 in Europe.Set in 21XX, Dr. Cain discovers a robot sealed away in a capsule left by the late Dr. Light, that is capable of highly advanced AI and even free will. Dr. Cain studied the robot, known as "X", and attempted to duplicate his functions, these robots later became known as "Reploids".However, under free will, some of the Reploids went rogue, and thus were branded as "Mavericks". To counter the threat, the Maverick Hunters were formed, with Sigma as the leader. However, soon afterwards, Sigma himself goes Maverick, taking the Hunters with him. X, not wanting to the fighting to continue, heads out to confront the Mavericks, joining Zero, the new leader of the Maverick Hunters.Mavericks:
Chill Penguin of the 13th Polar Region Unit, gives the Shotgun Ice
Awesome, but Impractical: The Hadouken. It can kill anything in a single shot, including bosses. Unfortunately, that one shot is all you get and it's somewhat difficult to land it, particularly against fast-moving targets.
Bad Boss: It is heavily implied that Flame Mammoth spends most of his time in his unit mocking those inferior to him in terms of strength. As an added bit of laser-guided karma, he's also the only one of the former Maverick Hunters that defected to Sigma's side to not have any of his unit go with him, although given the setting where he is fought, he probably didn't need them anyways.
Big Damn Heroes: Zero, who saves X just before he gets destroyed by Vile in the opening level.
Blackout Basement: Spark Mandrill's stage, especially if entered after beating Storm Eagle.
Boss Rush: This game is the only one to intersperse boss fights throughout Sigma's Fortress, much like the first Mega Man game.
Retroactively doubles as a Mythology Gag, since every game after it does the teleporter-style boss rush.
Bribing Your Way to Victory: In the iPhone version of the game, Sub-Tanks and Armor Pieces can be purchased. Many people have not approved of this change.
But Thou Must: There's no way to not encounter Dr. Light's capsule in Chill Penguin's level or to refuse Zero's Arm Part.
Probably because the game is exorbitantly harder without it. A Self-Imposed Challenge is to start the game using a passwords that has Chill Penguin defeated, but without upgrades.
Charged Attack: By default, X can charge his Buster up to 3 levels, however once he obtains the Arm Parts, he can not only charge his Buster up to 4 levels, he can now charge all of his weapons.
Contractual Boss Immunity: Surprisingly averted with the Hadouken. The bosses go down in one hit to it just like everything else.
Disc One Nuke: It's tricky, but far from impossible to beat Storm Eagle first (without the ability to dash against his wind) so long as you know where and when to start running. The reward, Storm Tornado, rips through stages like nothing.
Guide Dang It: Unlocking the Hadouken requires you to, among other things, complete one otherwise-unremarkable stage seven times in a row.
Instructive Level Design: The game's level design is such that it teaches you different techniques by throwing you into situations that require them. By the end of the first level, the player will have had to use all of X's platforming abilities at least once.
Lethal Lava Land: Flame Mammoth's stage is this; at least before you defeat Chill Penguin.
Minecart Madness: Armored Armadillo's stage. The minecarts themselves travel very fast, mow down nearby Mooks in an instant, and are in fact required to cross the large chasm connecting the end of the mine to the entrance of the Boss Room.
Multipurpose Tongue: Sting Chameleon is all about this trope. He uses his tongue as his primary attack, and can hang from the ceiling to rain damaging spikes down from the ceiling.