http://www.spilnyhed.dk/Spil-Video/portal-2-gamescom-vid-repulsion-gel/ Portal 2 Gamescom Vid - Repulsion GelCheck out this vid showing off the Repulsion Gel from Portal 2 as seen at GamesCom.From:GamehelperViews:136 14ratingsTime:01:58More inGaming Thu, 26 Aug 2010 10:10:09 CEST en