Google has created a game in YouTube to show off how fast Google Chrome is and to highlight its integration with Flash. The game requires you to complete a series of web-based challenges as quickly as possible. It takes you through various web services from Google Maps to Last.fm.
Although it can be a hit hard, it is great fun nonetheless. Although it is actually meant to show off Chrome, it can be played from other browsers as well.
You can play it here: http://www.youtube.com/user/chromefastball
I managed to finish it in 03:35. How fast can you complete it?