Jikkyou G1 Stable is a horse racing simulation game for the Nintendo 64, released in Japan. It likely features realistic horse racing mechanics, allowing players to manage stables, train horses, and compete in various races.  Given the 'Jikkyou' prefix, which often implies realism in Japanese games, it's expected to offer a detailed simulation of horse racing.  The specific developer and publisher would need further research to confirm. 

Jikkyou G1 Stable (Japan)

Jet Force Gemini (Europe) (En,Fr,De,Es)