Set up the game using 4 player mats (like in the game of 2 and 4 players), and using all the towers. Begin the game with exactly 18 ammo, 1 Magic Toss, and 2 Strong Ammo cards.
Twice during the game, you may rearrange the towers into any legal configuration, including stacking them up to 3 towers high. Each shot may be taken from any corner (furthest from the middle).
If you miss a shot you do not get it back - you have exactly 18 shots for the whole game. If your shot went into a tower that is not on the Player Mat you shot from, remove that tower from the game completely.
Once you have taken 18 shots OR all the towers have been removed from the mats, you score 1 point for each tower you removed from the play, plus 1 point for each ammo left over (if any).