Unlocking Different Areas:
Get 100 Mutations to unlock Bosses Galore, where you can challenge the Killer
Cubivore. Get all 150 Mutations to unlock Shangri-la.

Defeating District Attorney:
District Attorney and his goons are very cheap. They will run around in circles and
attack when you get close. At the beginning of the level you will have a chance to
breed. When you breed, be a Graydon. Next, run near them and they will come
close and bark. Attack the one who barks at you. Repeat this until you get near
the oasis. Then, lure them into the ditch across from the breeding grounds. They
will run around trying to escape. Keep attacking them and they will not lock on to
you. Repeat until District Attorney is defeated