The lack of explanation or tutorial is a little confusing, but this is only because the gameplay is new and kind of nifty. The lack of clear goals, rewards or extrinsic motivators caused me to lose interest after a while, but the activity of navigating around obstructions and nabbing enemies through walls is itself somewhat fun and strategic. Although the slight confusion of switching between nodes, especially the more distant ones (minimap pls?) is unfortunate and might be rectified with HUD elements or camera movement from node to node