Dead Head Fred review at Gamespot.

"Dead Head Fred is an ambitiously large action adventure game that puts you in the role of a private investigator who has fallen on a bit of bad luck. Specifically, you've crossed the wrong bad guy and he's cut off your head. But of course, that isn't the end of the story. You're given a batch of new heads to use, each with their own unique abilities. Wackiness ensues in a long adventure that is undercut by unintuitive level design and poor combat."

Full Source: Gamespot