User blog comment:Emptylord/Sandbox/Random Mutation/@comment-16210885-20130830060634/@comment-3974211-20130830063835

I think Infrared Vision and Enhanced Hearing are overpowered, for passive/innate abilities. Permanently rendering stealth/brush useless is just too large of an upgrade; compared to the other mutations, which are only slight buffs/debuffs (with the exception of Spare Organs and Disposable Limbs, although they both have indefinite cooldowns). Some sight-orientated effect would be nice; although I think balancing it for a passive would be difficult. They would probably work more appropriately with the Protogenisis mechanic.

The other two are nice. ^_^