Hi, not sure if this is already known: The sound of the Jackhammer II seems to interfere with the ambient music. Whenever I use the Jackhammer II, the music kind of stutters. When I stop using the Jackhammer II, the music plays normally again. This didn't happen with the Jackhammer I. I'm not that far in the game, so I can't tell if it also happens for the Jackhammer III. BTW: Thanks for this great game :)