We reported a few days ago that Bastion was one of the first major retail releases to take advantage of Google’s Native Client (NaCl) in order become available for play directly in the browser. Now a port of the Multiple Arcade Machine Emulator, or MAME is available. By utilizing the Native Client, developers can sandbox their software so that it can be run on any computer directly within the browser. This means access to games without needing to install them first.
If you’re interested in giving it a go, Robby Roto is available to play for free from the Chrome Web Store. Robby Roto is a 1981 game from Midway that is in the public domain, so you don’t have to worry about any legal grey areas. For those who want to try other games, the Chrome version of MAME does allow for uploading your own ROM files, though only some work. You can find plenty on the MAME website.