If you are receiving the error "Chrome failed to start our game" or "NativeClient: NaCl module load failed: ServiceRuntime: failed to start" don't worry we have an easy solution for you if you're using Windows!
We need to force Chrome to reload its flags. You can do that by following these steps:
First, type about:flags in your address bar.
Find the option "GPU compositing" and change it to a different value and then back to what it was.
At the bottom of the page you will see "Your changes will take effect the next time you relaunch Google Chrome."
Click the "Relaunch Now" button.