I also spent (some would say wasted) a good chunk of time playing /ESCAPE\, a Flash game that was created--in 72 hours, no less--by Ian Brock (graphics), Josh Schonstal (programming) and Guerin McMurry (music) for Ludum Dare 21 and that's now playable at kongregate.com.
For those of you who need to know a bit of information about a game, even free ones like /ESCAPE\, before giving it a go: It's a score-attack title that tasks players with wall-jumping again and again and again in an attempt to avoid being impaled by spikes and singed by an ever-advancing laser beam.
One of the best parts of /ESCAPE\, in my opinion: It requires the use of just one keyboard button. (What can I say? I'm lazy.)
Oh, and in case any of your are curious: My high score so far is 258.