Battle Tryst was shown at the 1998 AOU Amusement Expo show, in Japan. It was then released in February 1998.
This game features cameos from Konami's other games : Pastel (the pilot of WinBee) and Princess Melody (from the "Twin Bee
" series) and Simon and Richter Belmont (from the "CastleVania
" series, as Shemon and Rheter, respectively), are the hidden fighters.
The magnific opening and ending anime sequences, were produced by famous Mamoru Oshii, director of Ghost in the Shell.