Keygen produced invalid codes that were not detected (the
user is not notified on entering an invalid code, at least
not immediately).

After an atomic war, the world has been divided in 4 regions
that grew up into 4 indipedent civilizations.
The 4 regions are now fighting for dominance over the entire
planet. The leaders of the four regions decide to settle this
by inviting the best fighters from each region to fight into
the ultimate combat: The Cosmic Fighters Tournament. This
game is a futuristic version of popular Street Fighter game
series, complete with amazing sound and graphics.
Future versions of the game will allow you to play against
other mobile phone users via Infrared oe Bluetooth.