Several areas feature complex circuitry which needs to be tweaked to power various level features up or down, from lifts to energy barriers and enemy spawn points. Early on, it’s a matter of following the pipes as they wind around the level, and stepping on buttons in the right order to complete the circuit. As the game progresses, you earn the ability to hack objects (to change the function of logic gates, for example, which is required to solve certain puzzles) and even enemies. To do so, you enter Recompile mode, which pauses the action and zooms the camera out. Yet, as with gunplay, it suffers from an unruly reticule, often taking several attempts to lock onto objects, and it’s bafflingly locked to a 2D plane.