Ultimate Ecology was originally released in December 1993 in Japan. It was known as the third video game released on the CPS-II hardware.
The game was actually designed by a Japanese gamer, who won a Capcom-sponsored competition to design a game for the arcade giant.
The game is known outside Japan as "Eco Fighters". Here is a list of known export releases:
"Eco Fighters [Blue Board]
"Eco Fighters [Grey Board]
"Eco Fighters [Orange Board]
Shinseisha/Gamest released a limited-edition soundtrack album for this game (Ultimate Ecology - GCD-2) on January 22, 1994.