The 1978 1st edition by Tyr is sometimes missing pages 13-14 & 47-48 in Book II (I've seen them both ways). They also come with an extensive errata sheet. The later Phoenix Games set is identical, but the errata has been incorporated into the text. In both, the map of Japan is in the centerfold of both books.
-Wayne

"In Bushido, the Players take roles as members of various Professions and wander through Nippon. The overall campaign is organized by a Games Master whose imagination is only the starting point for many hours of intriguing and entertaining enjoyment. The Heroes of Nippon is the player's guide and contains the rules for creating characters, combat, and magic. It features an Attribute system which allows a character to be tailored to a player's specifications. The Land of Nippon is the referee's guide and contains rules of Encounters, Battles, and other things necessary lo the campaign. Bushido uses pencil and paper, six and twenty-sided dice, a Game Master, and as many players as will brave the perils of Nippon."

1978 ... Paul Hume & Bob Charrette ... 72 + 60 pages ... Tyr Gamemakers

1980 ... Phoenix Games

The game was later released as a combined paperback.
-Wayne

"Flashing bladework, brave warriors, martial mastery, wise priests, honor, stealthy assassins, demons, magicians, spirits, war -- the stuff of Legends, the Legends of Japan. BUSHIDO is a role playing game that allows you to adventure on the Misty Isles of Nippon.

Players in BUSHIDO design their characters to suit the profession they choose. A skill system is used to determine the character's success in both martial and peaceful endeavors.

Take a break from the Western European and sample the mysterious world of the Far East. Try adventuring in a world where a man's honor and fame are as important as the number of foemen he has slain..."

1981 ... FGU 6801