
What is a "Zap Click?"
Zap Click allows you to speed game play in the following manner: let's say you have a revealed number and you have marked the bombs it is referring to. Normally, you would then have to click on the surrounding squares to reveal them, now that you know they aren't bombs. Zap Click allows you to click on the revealed number and the game will reveal all the surrounding squares (much like clicking on a blank space).
Zap Click has an evil side effect, however - if you Zap Click on a number and all the surrounding bombs have not been marked correctly, it will trigger a bomb and end the game.
You can turn the Zap Click preference on and off in your preferences.