* AssPull: In 2016, Urban Rivals released a comic, ''[[https://s.acdn.ur-img.com/urimages/comics/en/room13th/room13th_en.pdf Room 13th (True Detectives)]]'' revealing what inside the room, Room 13 in the Red One Motel and the invention of the Xantiax gas since 2011 when the Berzerk clan was released and have the room being mentioned in each card's bios but no foreshadowing on what's inside. [[TheReveal The reveal?]] [[spoiler:It's Robb from All Stars and GHEIST created the gas.]]
* BigLippedAlligatorMoment: In the one of the game's comics, ''[[https://s.acdn.ur-img.com/urimages/comics/en/kolosbacktolostworld/kolosbacktolostworld_en.pdf Kolos: Back To Lost World]]'' where Kolos tells his backstory to his son, Rage, the [[ArtShift art shifts]] into a Sanrio-esque flashback where he appeared as a kid but got bullied. Thankfully, the art verts back to normal and it was never mentioned.
** It's was an [[AprilFoolsDay April Fools' prank]] that UR pulled off in 2017 but still.
* GameBreaker: A good way to tell if a card fits this is if they're permanently banned in [=ELO=].
* PowerCreepPowerSeep: A sad inevitability in a game where new cards periodically come out. It's gotten so bad that not only are some older cards rendered completely obsolete, but a few clans who haven't been updated in a while play with a clear disadvantage altogether.
* {{Squick}}: All lot of the cards' illustrations has gross-out aesthetics that can make a player lose their appetites while they're playing, mostly from the one of the new commissioned artists, NICOLASROSSIUSISNOTEVIL.
* TheyChangedItNowItSucks: Through the years, some players did not like how the staff change the site's interface before being on mobile.[[note]]Urban Rivals was originally called "Clint Fighting" and first debuted on flip phones in the early 2000s before transitioning to internet in early 2006, made by Boostr and later on as Acute Games.[[/note]]
** Some didn't like the switching of Flash to [=WebGL=] before Adobe discontinued their Flash Player in New Year's Eve 2020.
** Some did not like some newer clans with new abilities, bonuses and stats being overpowered or broken.
** [[YouDontLookLikeYou Some of them did not like the old cards' redesigns(or as the discontinued card gimmick; Rebirths).]]
** Some thought the game [[FranchiseKiller died]] and accused on one of the staff, Saga), thinking he killed the game for good.
** Some think staff treat one of the game's characters, Tyres as their [[CreatorsPet pet.]]
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