Extra Limbs
You have extra limbs. Original, right? This does not give extra attacks or anything, it just means you can't really be grappled (you gain a grapple bonus to all grapple maneuvers and rolls to initiate equal to your extra arms, resist or break per arm). If your limbs recede into your body (they can be arms or tentacles or whatever), you may look normal, but if not? You could try getting the Unattractiveness drawback. If it looks freaky.
Examples: Spider-Man in certain issues, Machamp
Cost: 3/Limb