Quantum Conundrum

Quantum Conundrum is a puzzle-platformer viewed from the first-person perspective. The player can run and jump, interact with switches, and lift light objects. The player can die by falling into toxic liquids, bottomless pits, or falling, and if hit by lasers; this will restart the player at the start of a puzzle or a checkpoint. The goal of each room is to reach its exit door, though it may be necessary to activate switches or other devices before the exit can become available. (wikipedia.org).