Basic Trope: A good guy turns into one of the bad guys.
- Straight: Bob turns to The Dark Side to defeat his worst enemy, and stays that way.
- Exaggerated: Bob turns to The Dark Side to help him win a one dollar bet, and gleefully speeds across the Moral Event Horizon shortly thereafter. He then becomes a force of evil so big that he rivals The Heavy himself in heinousness. Eventually, he becomes the lowest of the low.
- Downplayed:
- Bob becomes one of the bad guys mentally and never actually leaves the heroes.
- Bob is a good guy turned bad, but he's almost always out of the spotlight as a villain.
- Bob becomes extremely disappointed of his allies' apparent lack of results, so he abandons them to become a brutal Anti-Hero who still works in favor of their cause, but in a rather twisted and cruel way.
- Took a Level in Jerkass
- What the Hell, Hero?
- Justified:
- He got Drunk on the Dark Side.
- The villain made him an offer he couldn't refuse.
- Bob was thrown over the Despair Event Horizon.
- Bob tried to be a good guy, but the other good guys didn't cut him any slack and treated him like dung. He decided that Being Good Sucks, and opted to be a villain instead, just so they can treat him better than he had when he was a hero.
- He considered the entire world too far gone to save, therefore, destroying it completely would be considered a Mercy Kill.
- The villains have gotten away with their atrocities one too many times, and Bob finally decides if he can’t beat them, he might as well join them
.
- Inverted: Heel–Face Turn.
- Subverted:
- He's only pretending to turn to evil, to find out what the bad guys are planning.
- He's just Brainwashed.
- He was actually captured or killed and replaced by his Evil Doppelgänger.
- Bob was merely participating in a police exercise as one of the 'criminals'.
- Double Subverted: When Hiro confronts him on his turn to evil, Bob says he's only trying to find out what the bad guys are planning. He's lying. Or he meant to, but starts Becoming the Mask.
- Parodied:
- Bob turns to The Dark Side entirely because Good Is Boring.
- Bob turns to The Dark Side because they promised him cookies.
- Bob turns to The Dark Side because he had a simple bad day.
- Zig Zagged:
- Face–Heel Revolving Door
- Bob turns against the heroes, and sides with Emperor Evulz. Then it turns out that he is secretly working against Evulz. Once they realize the sheer lengths Bob is willing to go to satisfy his personal grudge with Evulz, they decided that while he may be Evulz, he is no friend of theirs.
- Averted:
- Despite occasionally having to Shoot the Dog, Bob remains good.
- Bob has Incorruptible Pure Pureness, and thus will never join the bad guys' cause.
- Bob was already evil to begin with.
- Enforced:
- "We need a new villain. What if a hero turned against his fellows?"
- "We need a new source of drama in this show. What if one of the heroes went bad and the others had to cope with their friend now being their foe?"
- Lampshaded: "You've gone over to The Dark Side? After all the times we've crushed them? Really?
- Invoked: The villain knows Bob's weaknesses and plays on them in a "Break Them by Talking" lecture to cause him to go to The Dark Side.
- Defied:
- "You're not going to get me to betray my friends with a mere offer of money or whatever."
- Bob attempts to defect to Emperor Evulz. Evulz laughs in his face, tells him he has nothing worth offering him, and shoots him.
- Exploited: Emperor Evulz employs Bob's knowledge of the inner workings of his former organization to gain tactical advantage over the Fallen Hero's former friends.
- Discussed: "You don't need to worry about Bob forgetting which side he's on- he knows exactly what he's fighting for."
- Conversed: "Is this the episode where he turns into a bad guy?"
- Deconstructed:
- Bob turns to The Dark Side, but in doing so becomes a Fallen Hero who finds out painfully that Being Evil Sucks.
- It is revealed that he has ulterior motives beyond good and evil for working for The Dark Side, believing that they will better help him accomplish his goals.
- Reconstructed: Now realizing evil sucks, Bob tries to atone for what he has done, but is promptly rejected and bitterly embraces his fallen status.
- Played For Laughs: Bob joined The Dark Side only because he has more opportunities to employ comedy while working for it, in stark contrast to the seriousness of his original team.
- Played For Drama: After his Face-Heel Turn, Bob still cares about his friends on the side of good, but their goals oppose each other and he is conflicted on whether to give up his evil plan or lose his friends forever.
- Played For Horror: Bob's Face-Heel Turn leads to him to kill anyone and everyone who made fun of him for losing Alice, when in reality they have nothing to do with Bob or Alice. Bob then takes this a step further by extracting the blood from their corpses to create live blood clones of himself, each of whom are sentient and just as sane as the original, to conquer the world with an iron fist...only because his mom refused to cook lunch for him. He would then take this step a tad bit further by threatening to kill anyone who disobeys him or his philosophy in many gruesome ways or enslave them in fates worse than death or any fate so bad not even death can save them.
Embrace your new villainous side at Face–Heel Turn.
