The words "mystery game" are often enticing for players, as usually, the mystery implies that there is something major to be hidden. For example, when the Epic Games Store gives out mystery games, fans know that it's probably going to be some of the best games given out on the service. One year an Epic Games Store mystery game was even Grand Theft Auto 5, and that speaks volumes. Now, Best Buy is dipping into the mystery game reveal approach with its latest sale.