Squize, About 500 times. That game took about 3-4 weeks to complete, it started bad, got better, then sound came to the party and it got worse. We were not allowed to use flash as a backup for sound, so its all html5 sound which is unbelievably buggy and different on all browsers.

Hooligan, yeah I had to learn it while building, I almost had my own renderer setup, but then came across easel JS by grant skinner, that saved my life. Haven't used any webGL or molehill, yet

rumblesushi, wasn't our choice, was Microsoft. They wanted to showcase the hardware acceleration on IE9. Weird that they went with pacman to do this, I don't think they had webGL support yet, so it had to be something 2d.