Whoa, you mean you didn't know Canabalt? Canabalt was made by the awesome Adam Saltsman & its been an indie hit for the last year or 3. It has seen a rather succesful iOS release besides the Flash game & by all means, was a really succesful game from a financial point of view - which is great, Adam is a great guy.
On the WINNITRON systems, of which Vlambeer has one near our office, there is an exclusive two-player version of the game (amongst other indie hits such as NIDHOGG & Super Crate Box VS). It's really awesome to have such an arcade cabinet nearby

.
If you like one-button games, check out the results of the GAMMA IV competition a while ago. Some really impressive things there, too.
Better late than never though - if you like the indie scene, I've got a topic called 'Game of the Week' somewhere in Geek Culture & I try to discuss or name an indie title that has had made an impression on me.
Business guy and developer at [url]www.vlambeer.com[/url] - bringing back arcade since 1956.