My interpretation of the rule is that a run of the game, in which it is properly "experienced" should not exceed 2 minutes. So a game that a player could hypothetically keep running for over 2 minutes would be fine, but not one where to properly play the game would necessitate a more than 2-minute runtime. By similar token, a game with lots to do, but that can technically be rushed through in 2-minutes, wouldn't be okay.