If you are looking for what this "Complete" edition offers, here are the main features included in the full game:
: You must have all parts in the same folder and use a tool like WinRAR or 7-Zip to open "part1"; it will automatically pull the data from the other parts.
: Beyond the standard portals, this sequel introduces: Propulsion Gel : Increases your running speed.
: A massive story-driven adventure featuring the return of Chell and GLaDOS , introducing new characters like Wheatley (voiced by Stephen Merchant) and the eccentric founder of Aperture Science, Cave Johnson (voiced by J.K. Simmons).
: Physical paths and tractor beams to move objects or yourself through the air.
