Game: In the Jaws of the Servitor!
'In the Jaws of the Servitor!' is a puzzle platformer where you play as an alien parasite and control the minds of a variety of human hosts to reach the end of each stage. The host's life is drained over time, so you cannot occupy one body for too long. Each of the three hosts has a unique ability that helps to progress through each stage. Furthermore, when you switch hosts, your previous host remains stationary and slowly regains health, to be occupied again in the future. It's ''Invasion of the Body Snatchers" meets H.P. Lovecraft. Video: http://www.youtube.com/watch?v=LIgr5kkQA9c