Well I'm not going down to the gameroom to look, because they would all be different. Each game with a subwoofer needs to be tuned with your ears. My Tron needs higher settings and a different crossover than IM. I don't want it to sound muddy, and it needs to enhance just the right part of the bass. Toss it on the game, and then do some heavy handed adjustments. Make it to much, make it too little. You will hit the spot when it's just right.
And remember, some games sound like crap with them. Don't force it onto a game that it doesn't help. If it sound muddy, it sounds crappy.
But on a game that needs it? They rock.