Soma is a wonderful game that covers this type of thing. It does make you wonder what consciousness really is... Maybe the ability to perceive and store information, along with retrieving that information, is enough to provide an illusion of consistent self?
Or maybe it's some competely strange system, unkown to science. Who knows?
I think the definition of consciousness needs to not be solely about abilities or attributes. It needs to account for the active process of consciousness. Like a hair dryer can burn things.. but a fire is things burning. Without the active nature its simply not conscious.