Insane Mode

If Daniells sanity gets to zero, he enters insane mode.

Symptoms
In insane mode, the world goes into a blue color, and the screen is blurry and wobbly, Carl and chili now look like patients, and several hallucinations attack Daniell.

Hallucinations
They are very difficult to defeat and kill the player in one attack, it is recommended the player doesn't attempt to engage them. Simply attempt to regain sanity before they kill you. Defeating all hallucinations results in the, "I See Dead People," achievement.

Mind of the Crazed
When playing as Dr. Jameson in Mind of the Crazed, his sanity pills make it so that his Sanity is brought back up to 100%, and stays that way for 30 minutes. When not under the effects of the sanity pills, Dr. Jameson looses 5% sanity every five minutes. If the player manages to complete Mind Of The Crazed without becoming insane, (Not counting the final mission, for Dr. Jameson has a scripted insanity mode at this time) they will get the, "It's Called... Rations," achievement.