The Halucination Power Station

You work in a power station where a dangerous chemical was released.                            You must get to room were your friends and coworkers are... but becouse of the chemical you can't remember whereit is so you must figure out who is                              human and who is a halucination.                                                                                                       
If you follow a halucination a few times you will lose and there is a timer, too.

controls: WASD

There are 4 hints that unlock one-by-one after you lose.