Neo Geo Battle Coliseum is a 2 on 2 tag team fighting game developed by SNK Plyamore and released in 2005 for the Atomiswave arcade board, with a Playstation 2 port in the same year. Mikel noticed some beta differences in a trailer from the JAMMA/TGS 2004:
At 0:20, you’ll see Mai do her trademark Super Deadly Ninja Bees move, you may notice that when she starts the move, you will see that the Desperation Move Sparks are The King of Fighters XI, the Desperation Move sparks in the final version of Neo Geo Battle Coliseum are different, and the Desperation Move sparks you see later made it to The King of Fighters XI.
At 0:24, you’ll see Asura (From Samurai Shodown 64-2 (The 64 doesn’t mean that it’s for Nintendo 64, it’s for an old, abandoned Arcade Board by SNK named the “Hyper Neo Geo 64”)) preform a Double Assault, the Double Assault spark was later reused for the Leader Despeation move spark in The King of Fighters XI, and the Double Assault background is somewhat absent.
At 0:31, you’ll see Yuki doing a strange pose while K’ does some Light Kicks then K’ later taunts, the sprites for the pose Yuki was doing were absent in the final game.
At 0:33, you’ll see Fuuma doing a weird taunt that has him spinning his head around holding a folding fan, then he opens the folding fan (i.e. Mai Shiranui) at the end, I am not too sure if that taunt is in the final.
At 0:41, you’ll see that Hanzo’s stance is different, that stance was replaced with a new stance in the final game.
At 0:42, you’ll see that when Ai walks backwards, only one sprite shows up, she gets sprites when she walks backwards in the final game, and Ai’s taunt is also different.
At 0:47, you’ll see K’ preform his double assault with Tung Fu Rue, you’ll see that the background is black.
At 1:21, you’ll see Asura preform one of his moves, you will also see that the background doesn’t fade to black when he does the move (I forgot the name of the move, if you know the name, tell me right away).
Thanks to Mikel for the contribution!