Those old-fashioned mechanical puzzles are wonderfully fiddly. You twist a dial, inspect a hidden compartment, and occasionally spend far too long staring at something that was right under your nose. The missing Egyptologist is a good excuse to wander through increasingly uncanny places, where even the walls seem to have secrets. This modified Pico release replaces VR interaction with touchscreen controls, and the full game content is unlocked. It loses some of the headset's physical presence, naturally, but the puzzles still have plenty of bite. Testing has also been reported on Adreno, Mali, and PowerVR GPUs.