Video game retailer GameStop Corporation GME reported second-quarter financial results Tuesday after market close.Here are the key highlights.What Happened: GameStop reported second-quarter net sales of $798.0 million, which missed a Street consensus estimate of $895.7 million, according to data from Benzinga Pro.Net sales were down from last year's second quarter total of $1.16 billion.The company reported a profit of 1 cent per share, beating a Street consensus estimate of a loss of 9 cents per share.Net ...