When you boil it all down, Tenchu: Dark Secret is a missed opportunity. Wi-Fi gameplay is limited to exchanging items in an online marketplace and multiplayer is limited to local wireless play. It's a shame, really. The DS could have used one of its dual screens as a magical map to give the locations of patrolling sentries, the microphone used to whisper distractions to guards and the touch screen used to plant ninja traps with pixel-perfect precision. Unfortunately, the developers opted instead for run-of-the-mill hack-and-slash game mechanics, and so they turned out a game that incorporates very little of what makes the system so enticing in the first place.