User blog comment:Willbachbakal/Co-Op Plasmids/@comment-3195894-20110726194335/@comment-1330314-20110727005655

About six, yes. Since most players will always have Electro Bolt, Telekinesis and possibly Incinerate! with them at all times, that'd give them three more Plasmids to experiment with without spending too much ADAM on them.