At Dave & Buster's, enter your email address to receive a printable coupon good for $20 of game play for free with a like purchase. It's tied with our early June mention as the best such offer we've seen from Dave & Buster's since April, when we saw $40 for $20 or $60 for $30. Game play can be used on most video games, pinball, electronic simulators, and games of skill. Click here for a list of locations. Deal ends September 3.