'''Basic Trope''': A fighter in full armor or some other form of gender-masking attire is revealed to be female.
* '''Straight''': Bob is saved by a warrior wearing a full suit of armor. The warrior is revealed to be Alice when she takes her helmet off.
* '''Exaggerated''':
** The armored warrior appears to be the pinnacle of masculinity. Underneath the armor is Alice, an incredibly feminine woman.
** It isn't revealed that Alice is a woman until the very end of the last episode.
* '''Downplayed''': Bob is saved by one of a clan of ninja. He only finds out the identity later, much less the fact that it's Alice, a female.
* '''Justified''': Alice's armor suit is either designed for men or designed in a very unisex manner.
* '''Inverted''':
** A warrior in very sleek, feminine-looking armor takes off their helmet. Inside the suit is Bob.
** We're led to believe that TheHero is out to SaveThePrincess, but when he finally pulls off the rescue, we see him rescue Prince Bob.
** Alice, the boyish-looking ActionGirl, is revealed to have once been the famous hero Albert, having pulled a SweetPollyOliver to join the then all-male hero team, before eventually disappearing for some reason (and, obviously, resurfacing just in time for the team's membership to be opened to females as well).
* '''Subverted''':
** "Alice" later reveals himself to be an [[DudeLooksLikeALady effeminate man]] named Alex.
** Alice is RobotGirl or HumanoidAlien.
* '''Double Subverted''':
** "Alex" is then revealed to be a SweetPollyOliver pulled by Alice in order to get the armor in the first place.
** Even if Alice is not human, she is still technically female.
* '''Parodied''':
** Alice's "gender-concealing" armor is nothing more than a hat or a set of eyewear. Before the reveal, she is treated like a man despite obviously looking like a woman.
** Alice mannerisms and speech ([[VocalDissonance even if it's muffled]] by the suit) are [[{{Kawaiiko}} incredibly girlish]]. Yet, everyone gets shocked when she removes the armor for the first time.
* '''Zig Zagged''': Alice has different sets of armor that may or may not hide her gender. Also, she is a {{Bifauxnen}} underneath and fools some people but not others.
* '''Averted''':
** Alice's gender is made known to the viewers before she starts kicking butt in a suit of armor.
** Alice's gender can be recognized by her armor.
** The warrior never takes off its helmet.
* '''Enforced''': ???
* '''Lampshaded''':
** "Wait, you're a girl?!"
** "What do I have to do, put pretty pink ribbons on the chainguns? YES, I'M A GIRL! GET OVER IT!"
* '''Invoked''': [[YouGoGirl Alice's peers are sexist, so she disguises herself in a bulky suit of armor, kicks ass, then intentionally reveals herself in order to prove a point.]]
* '''Exploited''': [[BigBad Empress Evulz]]'s attack on what was presumably an all-male group utilizes [[AppliedPhlebotinum some substance]] that targets the Y-chromosome. Alice, inside the power armor and not having a Y-chromosome, [[PlayingPossum pretends to be afflicted]] so that when Empress Evulz's forces pass her not-dead body, she gets up and pours a ton of rounds into their backs.
* '''Defied''': Alice deliberately uses one of the aversions of this trope to make sure that nobody mistakes her for a guy.
* '''Discussed''': "Hey, wouldn't it be hilarious if that big armored guy over there turned out to be a girl?"
* '''Conversed''': "This is one of those moments where a tough guy swoops in, saves the day...and turns out to be a girl."
* '''Plotted A Good Waste''': The author thinks the book needs GirlsNeedRoleModels.
* '''Deconstructed''': Alice has never before been seen without her armor, thus does all her work with everyone under the assumption she is a man. After TheReveal, the supporting characters take her less seriously, and feel she is "less up for the task" while ignoring her previous achievements to the contrary.
* '''Reconstructed''': Alice proves herself as a much more than capable warrior in a TakeThat to the men who doubted her.
* '''Played For Laughs''': Alice's armor even changes her voice... When she's in her armor, she speaks with BassoProfundo.
Wait a minute, {{Samus Is A Girl}}?
%% Optional items, added after Conversed, at your discretion:
%%* '''Implied''': ???
%%* '''Played For Drama''': ???