"Of the roughly 900 arcade games (yes, nine hundred arcade games) up there, some are in pretty weird shape - vector games are an issue, scaling is broken for some, and some have control mechanisms that are just not going to translate to a keyboard or even a joypad," said Jason Scott, the programmer behind the online arcade. "But damn if so many are good enough. More than good enough. In the right browser, on a speedy machine, it almost feels perfect. The usual debates about the 'realness' of emulation come into play, but it works."
Interested gamers can see a full list of available games here.