Kill the Opponent
The "opponent" is the problem you are trying to solve, the
obstacles to delivering the system. "Killing the opponent" is solving the
problem, delivering the system.
When I considered this it completed the game metaphor. I discussed this idea with members of my team and we had the following thoughts:
To the extent we create a solution that is well designed, modular, extensible, and elegant, we win the game, set and match. A solution that lacks some of these attributes may provide a momentary victory, but it may breed even greater problems (more opponents), and therefore doesn't really win the game.