I've noticed it dropping a few key presses too, even when I run directly from source. As for the sound effects, I don't know if you're actuslky experiencing issues or it's just how I made the sound effects. Thanks for the input! :>
Edit: Oh, I see what you mean with the sounds. That wasn't there before. I wonder why the web version remains unchanged and yet does that. I should probably add a note somewhere in the description. Perhaps on lower end devices it lags for some reason and does this...