Plague Inc Neurax Worm

Bored with bacteria? Fed up with fungus?  Bio-weapons got you down? If you're tired of the same old destruction in Plague Inc. -- a happy little game from Ndemic Creations in which your job is to eradicate humanity -- a new update brings forth the Neurax Worm, a "manipulative organism that burrows into the brain."

The expansion pack also burrows into your wallet a tad, to the tune of a $1.99 in-app purchase. But when was the last time you purchased a mind-controll worm so cheap?