''Neo Geo Battle Coliseum'' is an {{SNK}} crossover fighting game similar to its flagship series ''VideoGame/TheKingOfFighters'', but it features several characters who have not appeared in ''KOF'' canon (such as those from ''VideoGame/SamuraiShodown'', ''VideoGame/TheLastBlade'' and ''VideoGame/WorldHeroes''). It was released in 2005 on Sammy's Atomiswave arcade system, and subsequently on the UsefulNotes/PlayStation2 and UsefulNotes/XboxLiveArcade (last one as [[VideoGameRemake HD remake]]).

The game takes place in the year 2017, with a tournament being held by the leader of the WAREZ corporation, who seeks to find the strongest fighter in the Neo Geo universe and defeat him/her, paving the way for him to install himself as the supreme ruler of the world. In response, the federal government dispatches two of its brightest secret agents, Yuki and Ai, to investigate.

''NGBC'' utilizes a 2-on-2 tag battle system, and teammates can tag in and out at will. There are benefits to allowing your partner to rest for a while, such as RegeneratingHealth, a regenerating power meter, and the ability to use an attack that stops your opponents from regaining their health (and in turn, boosting your attack power for a short time).

Arcade mode functions differently than most fighting games. Instead of a set number of opponents to fight, you are given five minutes to defeat as many opponents as possible. Once the time expires, you then face one of four different {{Final Boss}}es, depending on your performance.
!! Playable Characters:
* [[OriginalGeneration Original to this game]]: Yuki and Ai
* ''VideoGame/TheKingOfFighters'': Kyo[[note]][=KOF99=] outfit[[/note]], Iori, K', Shermie
* ''VideoGame/FatalFury'': Terry[[note]]In his ''Mark of the Wolves'' outfit.[[/note]], Geese, Mai, Kim, Tung Fu Rue, the Jin brothers (Chonrei and Chonshu), Rock, Hotaru
* ''VideoGame/ArtOfFighting'': Ryo[[note]]As "2nd Mr. Karate" from Buriki One.[[/note]], Robert[[note]]New design.[[/note]], Mr. Big, Lee
* ''VideoGame/SamuraiShodown'': Haohmaru, Nakoruru, Genjuro, Shiki, Asura
* ''VideoGame/TheLastBlade'': Kaede[[note]]Awakened form.[[/note]], Moriya, Akari, Washizuka
* ''VideoGame/WorldHeroes'': Hanzo, Fuuma, Mudman
* ''VideoGame/AggressorsOfDarkKombat'': Kisarah Westfield
* ''VideoGame/KingOfTheMonsters'': Cyber Woo
* ''VideoGame/MetalSlug'': Marco and Mars People.
* ''VideoGame/{{Athena}}'': Athena.

!! Bosses:
* [[OriginalGeneration Original to this game]]: Mizuchi[[note]]A [[CloningBlues clone]] of ''KOF'''s {{Orochi}}[[/note]] and Goodman.
* ''VideoGame/WorldHeroes'': NEO-DIO.
* ''FuunSeries'': Shishioh/King Lion.
!! Tropes used in ''VideoGame/NeoGeoBattleColiseum'':
* BatterUp: Ai's Batting Hero attack.
* BeamSpam: Mizuchi can throw projectiles at you from any angle, from any ''position''.
* {{Expy}}: SNK deliberately expied ''themselves'' with Goodman, a blatant TakeThat to Igniz from [[DorkAge the Aruze/Eolith days]].
* HandbagOfHurt: Kisarah fights by hitting people with her backpack.
* IKnowMortalKombat: All of Yuki and Ai's moves are named after old SNK games.
* OriginalGeneration: Yuki, Ai, and the TrueFinalBoss Goodman.
* SecretCharacter: Athena (the princess from her own game; not to be confused with ''KOF'' regular Athena Asamiya) and the [[VideoGame/MetalSlug Mars People]].
* ShoutOut:
** The backgrounds and special move names are littered with references, not just to the series represented, but to other much more obscure SNK games such as ''Robo Army'', ''Alpha Mission II'' or ''Top Hunter''.
** [[http://www.youtube.com/watch?v=VNbptNDFcK4 Yuki is not boy.]][[note]]"I'm not [[GameBoy BOY]]" was one of the advert catchphrases for the Neo Geo Pocket Color.[[/note]]
** Nakoruru's win quote against any of the [[PlayingWithFire fire users]] refers to [[http://en.wikipedia.org/wiki/Smokey_Bear Smokey Bear]] of all things.
--> '''Nakoruru:''' "Uh, didn't the bear tell you? Only you can prevent forest fires, so watch those flames."
* SNKBoss: Expected. After all, SNK is the TropeNamer. Notoriously, all ''four'' final bosses are ridiculously powerful and ridiculously ''cheap''.
* SpiritualSuccessor: This is basically the sequel to ''SVC Chaos'', minus the Capcom characters, but with better character balance and a tag team format.
* TakeThat: [[DigitalPiracyIsEvil WAREZ is named after a term for piracy.]] SNK blames piracy for it's bankruptcy in the past.
* UnexpectedCharacter: In a game full of Neo-Geo All-Star cast, who would expect a somewhat forgotten character like Lee Pai-Long, who hasn't seen a playable appearance since ''Art of Fighting 2''... or really, Kisarah Westfield from an obscure game like ''Aggressors of Dark Kombat''!?
** Nevermind them, who would've expected '''[[VideoGame/KingOfTheMonsters Cyber Woo]]''' to show up?!
* YourSizeMayVary: Cyber Woo from ''King of the Monsters 2'' was a [[{{Kaiju}} building-sized]] [[HumongousMecha robotic]] Film/KingKong. This game's version is relatively human-sized and controlled by a human.