Nocturnal
Moderate, Permanent, WIL
The mutant sleeps by day and is active by night. He is light sensitive and will take fatigue damage for staying awake during the day (as per loss of sleep rules).

Achilles Heel
Extreme, Permanent, CON
The mutant has a weak spot, chosen by the player, that if struck, doubles the damage received.

Mentally Defenseless
Extreme, Permanent, INT
The mutant has a 5 step penalty when defending against telepathic and empathic attacks.

Poor Respiration
Extreme, Permanent, CON
The mutant has trouble breathing. This reduces his CON score by 1 permanently and in times of high stress receives a 2 step penalty to all skill and combat checks.