At Dave & Buster's, enter your email address to receive a printable coupon good for $20 of game play for $10. That's the best such deal we've seen from Dave & Buster's since last summer, when we saw $10 of game play for free with email sign-up. Game play can be used on most video games, pinball, electronic simulators, and games of skill. Click here for a list of locations. Some restrictions apply. Coupon expires April 30.