The company posted encouraging growth in a number of key second-quarter metrics.Like a successful video game play, Dave & Buster's Entertainment (PLAY 4.66%) was a stock market winner on Wednesday. The company's share price leaped nearly 5% higher following the release of its second-quarter results, making it an outlier on a day when the S&P 500 index booked a gain of slightly more than 1%.A crushing beat on the bottom lineDave & Buster's management unveiled those results after market hours Tuesday, which i ...