Head-to-head, action shoot-out on iPad where two-players face-off. This is an experiment to create a "grand-unified-game-economy" - the game features a single currency "goop" which serves as health points (HP), ammo, and win/lose points. Players earn "goop" by neutralizing mutually accessible targets. The win state requires either that the player has filled their ammo bar or that the opponent's is empty. The game is balanced so that targets may yield the player more health than spent shooting at the targets, but only if the player aims well. Timing and judicious target selection are keys to a successful strategy.