Choboco is a chicken-like creature but taller than it, that apeared in many FF in the FF series, such as FFX or X-2. There was a game called Choboco De Battle, developed by official SquareSoft L.A. This was considered a first game that release for Arcade, and a best graphic ever with range of polygon from 8 million to 80 million per second. That because it was used a Sig Onyx 2 workstation. The last time we seen it, is was at Sig 1997, running on a Onyx 2c without a coin-slot, and with a computer CRT screen. The game was cancelled for unknown reason, some rumor said that because they want to focus to the future of home console rather than develop it on a arcade using other technology. Now we wait until someone leak the ROM!
Thanks to tchristian for the description!