У вашего броузера проблема в совместимости с HTML5
A speedrun by Gocnak and CBenni, on the Portal mod "Portal: Prelude" in a time of 4:10 and in 9 segments.
This is a speedrun of a Portal mod, so most of the glitches in the current version of Portal have been used, which includes, but is not limited to: the clipping glitch, accelerated backhopping, Portal Quick Re-entry, and Portal Destruction Re-entry.
This run took the runners a collective time of only 2 days to complete.
Mod Homepage: http://www.portalprelude.com/
Mod Download: http://www.moddb.com/mods/portal-prelude
Enjoy!
http://www.sourceruns.org
http://www.twitter.com/SourceRuns