Yamato is an arcade game, and its versions (US and World) likely represent regional releases. This arcade game likely features a classic shooter or war-themed gameplay. Players would control a ship, engaging in combat against enemy vessels or objects.  The specific gameplay features such as power-ups or weaponry would vary depending on the version (US or World). Unfortunately, without access to more specific game details, further information about the developer, release dates, and differences between the US and World versions remains unavailable.

Yamato (US)

Xor World (prototype)