Quoted from majicman110:
Anyone know how much it costs to play a game on the p3 at Dave and Busters?
It is currently 6 credits. At full price you'd be looking at ~0.20 USD per credit, so $1.20 per player per game, so $2.40 for a 2-player game that consists of two 45-second rounds.
If you are paying full price for credits, though, you aren't trying. BOGO coupons are everywhere, so between using those or half-price Wednesdays you can easily get it to $0.10/credit. There are also Unlimited Play for a day cards that can be had for very cheap on Groupon. You really can get down to around $0.30/player/game without much trouble.