In this pitch-perfect collection of ersatz '80s games, the early title screens accept only Start. Once you reach the latter half of the decade, A and B work, too. Sure, it's a tiny detail, and that's the rub. The makers of Challenge cared enough about paying proper tribute to the NES generation that someone took the trouble to program in proper Start-button behavior. This is a game about the importance of remembrance, which makes it a perfect capper to Games That Time Forgot.