All-Star Baseball '99 is a sports game released for the Game Boy in the USA. It features classic baseball gameplay, likely offering modes such as exhibition matches, and possibly a season mode to manage a team over a season. Expect a simplified, yet fun, baseball experience adapted to the Game Boy's technical limitations.  Further details on the specific teams and game mechanics are needed for a complete overview. 

All-Star Baseball '99 (USA)

Alien Olympics 2044 AD (Europe)