Capsule
The Capsule is the life-support system that Colin exits at the beginning of Changed.
There are five of these capsules present in the Warehouse area, each of which once held a human test subject kidnapped by Thunder Science Company for use in medical experiments to stop the virus. When Dr. K and Puro explore the facility after the riot, they find that Colin is the only human left in a capsule. Since the White Knight was originally a human, it may once have been another inhabitant of a capsule.
The operation of the capsule is not described in detail, but according to Colin's experiences, it sustains its occupant on a sweet, liquid diet, thus leaving them hungry and with an empty stomach upon awakening. The occupant is apparently not only asleep, but in a state of suspended animation that can prolong life, as evidenced by the fact that Dr. K believes that Colin may still have the virus, long after all other humans who carried the virus have died. In the Sacrifice ending of the game, Dr. K suggests putting Colin back in the capsule until such time as a cure for the virus is discovered.