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I'll answer this here, since I know from personal experience that the "Is This an Example" thread doesn't often wield results.
Justin absolutely qualifies for Narcissist, since he fits all the trope's criteria:
1) The character's personality is overtly permeated by his Pride: He is seen obsessively admiring himself in the mirror in both seasons he participates in. He also states that he regrets voting for Beth to win after finding out that her boyfriend is more handsome than him.
2) Prioritize his own desires at others' expense: One of his quotes in Action is that he'll do anything to win, which is demonstrated when he openly mocks Beth and Lindsay after they fall for his charms and allow themselves to be manipulated by him.
3) Extreme self-consciousness of how he is perceived by others: He tells Courtney he doesn't know how he could live if he didn't have his good looks. The episode in which he is eliminated also shows he has extreme overreactions whenever he receives minor injuries.
4) Low tolerance for criticism: Justin orchestrates Izzy's elimination after she confesses she doesn't think he is that pretty.
5) Insatiable appetite for acclaim and power: Again, he has stated that he is willing to do anything to win the competition. He immediately takes over as his team's leader after Trent's elimination.
I agree with the deletion of Race Lift, since the trope page states that it only applies to derivative works. Since the prototype designs obviously do not count as a preexisting work, the examples are misuse.
I actually wrote all the The Bad Guy Wins entries about this work, but you seem to have deleted them. It's okay, but I'll admit I don't quite get your edit reason. What do you mean by "villains aren't villains or get comeuppance"? Courtney is quite clearly meant to be seen as the "villain" from Action; and I did mention that the trope was played with when it comes to Alejandro and Lightning, since the viewer is led to believe that they have gotten away with all their schemes, only for the following scene to show karma catching up to them in an unexpected way.
Edited by TantaMonty

Me and ~username2527 have a disagreement over three tropes I've recently removed from the Total Drama character pages and would like feedback to resolve it.
I changed this to pride because the trope description states that just being vain is not enough. And Justin lacks any of the detrimental aspects of narcissism, such as how once he thinks he's not beautiful anymore (and while he's vain, he's also a professional model, so his looks matter), he panics for a bit, but then just tries other things to make himself count and kinda goes with the flow.
Username 2527's argument is that he "has a sense of self importance and need for attention and admiration such examples include him frequently taking his shirt off to flash people, posing for the camera and he felt very upset when Lindsay and Beth stopped paying him any attention, believing that he was becoming ugly because the girls weren't gushing over him anymore."
As far as I'm concerned, A.) not a character trope and not a characterization-relevant event, and B.) very disputable example text.
There's also a C., which is relevant to my removal of the The Bad Guy Wins from the main page too. From what I understand from the trope description, the trope is only in effect in case of "complete and ultimate triumph for the villain". But every time a villain wins in TD, there's a catch, whether that is that they don't get the prize money in the end, that they get maimed, and/or that the finale reframes them as "not so bad". Lightning ends up badly injured (he's advised to spend the money on recovery) and there's a note that while winning prevents his relationship with his father from getting worse, it's not going to improve it. Meanwhile, the other finalist is leaving unharmed with a new outlook on life, new possibilities, and new friendships to enjoy.
So, the question is, is The Bad Guy Wins literally The Bad Guy Wins, or does the win need to be a triumphant one?