Thanks, i still don't get it, is it a technical demo or ? I feel a bit stupid but i can't leave the hall at the moment. Got a key, a flashlight but no more clues.
EDIT: Got it, right click for the win (alternative use, a bit misleading by the way ;)
As a feedback, with the flashlight on and my graphical settings, i can barely see my pointer and so can't tell if an object can be used or not , maybe a changing icon (a hand, gears) could improve ergonomics. Another point, the pause is not a real one, as flashlight battery still decrease...