In the Tomy version, the two armies are called the Impalers of the Clannic Shelf and the Doomlords of Gulch.
The Impalers inhabit the Clannic Shelf, a large floating rock island 500 metres above the surface of Otherworld.
The shelf has a gravitational effect on the Doomlords, causing them to have a shorter, squatter frame than the Impalers.
Players set the opposing game mats on opposite ends of a flat surface.
A flag is placed on top of the tower, and also on the far left and right sides of the field of play, outlining what will be considered "castle grounds".
Landing in the battlefield allows the player to fire from that point, improving their chances of doing some damage to the opponents tower.
Landing "out of bounds" (outside of the play area marked by the flags) allows the projectile to be recovered by the player.
Players are also encouraged to pick one or more winning goals, or use their imagination to create their own set of rules.
The only rule regarding piece placement is that no Hero or Warrior may be obstructed from your opponent's view by a weapon or building (does not include brick walls).