The Mummy: Tomb of the Dragon Emperor will take most players about five hours or so to complete. There's a harder difficulty level, but no built-in incentives to play through again. Certainly the gameplay isn't strong enough to make it worthwhile to play even once. If the game had continued to follow the more varied design formula demonstrated in the first level, the result might have been mildly engaging, but the poorly implemented gun combat quickly gets tiresome. Ultimately, its inconsistency and the plainness of its visuals make Tomb of the Dragon Emperor feel like a poorly thought-out, hastily thrown-together attempt to capitalize on a movie license, and that's probably exactly what it is.