If the player wishes to start here, they must enter the password for the last Road War, rather than the final arena battle. If the player enters the password for the final arena battle, the player will not have enough crossbow ammo to kill the final boss, even if every single one hits him.
To initiate this scenario, the player should use the password associated with the preceding Road War rather than the one for the concluding arena fight. If the player enters the arena battle password, they will lack sufficient crossbow ammunition to vanquish the final adversary, despite all arrows hitting their target.