* AwesomeMusic[=/=]EarWorm: ''[[http://www.youtube.com/watch?v=UtPoAAf0730 'Atsui Kodou']]'' is used for the PSX version of ''United By Fate's'' OP as well as ''Nekketsu Seisyun Nikki 2'''s OP. Listen to it once and [[GotMeDoingIt you'll find yourself repeating it]] on infinite loop.
* BadassDecay: Poor Raizo went through this starting in ''the very first game of the series''. You'd think a guy who looks like [[http://www.fightersgeneration.com/np2/char1/raizo-big.jpg this]] and is portrayed as the mastermind of the kidnappings would be the BigBad, right? Nope, it's his nephew [[MagnificentBastard Hyo]] who's pulling the strings of the plot. Then in ''Project Justice'', he takes a beating from new BigBad Kurow [[TheWorfEffect to show how badass the new guy is]] and [[DemotedToExtra doesn't even get to be a playable character in that game]].
* EnsembleDarkhorse: Compared to the other main characters (Batsu and Hinata), Kyosuke's popularity is still rather large - so much so that he got into ''[[VideoGame/CapcomVsSNK2MarkOfTheMillennium Capcom vs. SNK 2]]'' over them. Being a {{bishounen}} helps. The fact that Batsu and Hinata are basically Shotoclones for a game that's already full of them (Ryu, Ken, Dan, Sakura, Akuma, Sagat, Morrigan, Iori, Terry, Ryo, Yuri, and Athena) doesn't hurt either...
** Akira's popularity relative to her role in ''United By Fate'' was rather large. Seijyun seems to have been created just to give her her own story separate from the Gedo guys' adventures.
* GameBreaker: In both games, Roberto.
** In ''United By Fate'', Hyo and Sakura were also considered top tier characters. Gan also had an infinite combo.
** In ''Project Justice'', Roy, Hideo and Momo all were considered top tier.
* HilariousInHindsight:
** The game was originally going to be called ''Justice Fist'', with the plot revolving around the strongest fighters in the world gathering for a massive tournament. The eventual decision to focus on a school setting and a cast primarily consisting of teenagers stemmed from various employees noting that the original plot was too similar to that of ''Franchise/StreetFighter''...as well as ''every other'' fighting game ever made.
** Creator/BinShimada's role as Kurow is pretty hilarious if you take into account he is the official Japanese dub voice of [[Franchise/StarWars Luke Skywalker]], who also had [[BrotherSisterIncest a unusual relationship with his twin sister]], except in Luke's case, he didn't even know Leia was his sister in first place. On the other hand, not only Kurow's relationship with Yurika is shown is a very dark light, but also Kurow is the complete opposite of ''everything'' Luke is.
* MagnificentBastard: Hyo Imawano orchestrated the Justice High incident in ''United by Fate'' as a smokescreen, so everyone would be busy investigating the attacks. Thereby, diverting attention away from himself, while he was carefully selecting which students to kidnap and enslave to become his private army, by which he intended to rule Japan.
* TheScrappy: Momo. [[TheCutie Obnoxious]] [[{{Kawaiiko}} design]] even for the series, [[CuteButCacophonic shrill voice]] and [[TierInducedScrappy ridiculous in-game prowess]] [[GameBreaker compared to her size]] makes her not well-liked among fandom.
* ThatOneBoss: Gorin High's second story mode battle is [[DualBoss a 2-on-1 matchup]] that pits Natsu against Shoma and Roberto, with the odds stacked heavily in their favor. Shoma gets to start the fight with a tag team partner and 3 full stocks of super meter[[note]]he gets 5 in the UsefulNotes/PlayStation version[[/note]]. Meaning, they can use their [[LimitBreak Burning Vigors]] and team up attacks, right from the start. Plus, anytime Shoma initiates a team up, Roberto comes onto the field and recharges their super meter by 2 stocks (by 3 in the PS version). Whereas Natsu's on her own and doesn't get jack shit (i.e. no super meter to start with). In the amount of time it takes her to gain one full bar, Shoma and Roberto can gain dozens and can '''''[[TheComputerIsACheatingBastard AND WILL]]''''' [[PerfectPlayAI frequently interrupt any attempt she makes to use her BV's by double-teaming her.]] Put simply: if you're using Shoma, [[CurbstompBattle it's a cakewalk]]. But if you're using Natsu, it's [[RageQuit a rage inducing]] [[HopelessBossFight exercise in frustration.]]
* TheWoobie: Yurika. The poor girl is only is participating in Kurow's plans because of how much she cares for her little brother (and this is ''in spite'' of the verbal abuse he heaps on her). If the player manages to get an ending with her in ''Project Justice'''s board game, she also reveals she doesn't like the things she's had to do as a part of the Darkside Society and pleads to the player character to [[ItsNotYouItsMyEnemies forget about her so the PC doesn't have to face the wrath of the society with her]].
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