Mutants - Ext. Incubator Overload

The Incubator Overload expansion gives you access to more mutants, so you can create thousands of amazing new combos! It also includes the Buildings plug-in, which changes the rules of the game and gives you new challenges. Finally, Heimdall and Glubber have risen up and threaten to destroy the facility! Gather the troops and pit your best mutants against these fearsome single-player bosses!