@tofalot: That method works, but you need to add more information; there was no plugins link in my About page (or on any page I could see in the Wrench menu), and when I finally did find the plugins list it only showed one Shockwave at first.
Anyways, here's a more detailed explanation of how to fix the problem: Type chrome://plugins into your browser, then click the Details link at the top-right of the window. Find Shockwave, and click Disable for the first one only. Then refresh, and it should work; it did for me, anyways.
Love this game, but I find the lack of a reset button quite off-putting. It's annoying trying to get the Hard badge when you're forced to either waste all your lives or refresh the page and go through all the company logo animations every time you accidentally lose a life.