Due to 'portal bumping' where a portal tries to get out. in a certain area of the map. you can 'escape the place and get the white conversion gel everywhere. the location to do this is where the window is, where you get your cube. at the conversion gel dropper use it. and make go onto the walls but portal Surfing it. then, place a portal on to the side wall. (make sure to get the conversion GEl everywhere.)
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