Cyberex is a Japanese collectible card game published by Hanayama Toys in November 1997. Hanayama is a Japanese toy manufacturer with a long history of mechanical puzzles and game products. The card game appears to be an original intellectual property rather than a licensed adaptation of an anime or manga franchise. Booster packs were produced in Japanese, and at least some collector stock has surfaced in the Western market through specialist vintage CCG retailers. Beyond confirmed publication by Hanayama in 1997 and the existence of booster packs, detailed information about Cyberex such as its theme, mechanics, and card pool is not documented in English-language sources, placing it among the many small-run Japanese CCGs of the late 1990s CCG boom that left little trace outside Japan.
Source: phoenixcards.com/product/cyberex-pair-of-booster-packs-japanese-language/