This resized "Portal: The Flash Version" could be impossible to complete here, but here it is.
Source: www.flashbored.com
[[Spoiler]] The end of "Portal: The Flash Version" [[Spoiler ends here]] :-)

And I expect Portal 2 to be just as good, perhaps even better than the first. (Portal 2 Trailer)
References:
Portal (video game)
Portal 2 (video game)