It will melt down to the center of the Earth's core, cause a massive volcanic eruption, spewing thousands of tons of volcanic ash, blocking out the sun and sending this planet into a second ice age, destroying all life on this planet as we now know it..... or not.

I think it will depend on the game. I was messing around with my cab and snapped off the NO on the fierce punch button for Street Fighter. Cool thing was, when testing the inputs, the game acknowledged when the button was down vs when up. The game saw it as if it was wired normally. However every so often, Ryu was picked for me before I could choose.