I managed to crash chrome once, but couldn't reproduce it. I'm an indie developer so I don't have enough people QAing the product yet :/ My first gut feeling is the audio, but didn't have a chance to prove it yet. It would be great if you'll be able to send me more info on when exactly it crashed to my mail doron ( at ) vim - adventures . com . Other than audio, I really don't do anything out of the ordinary - all javascript and canvas. Regarding the w and b (and e), I left out the exact explanation since I believe that the self exploring and understanding contributes to the learning process. That part was intentional. Thanks for your feedback! I'll make another effort to reproduce the crashes.