The penalty for a kickoff or onside kick that goes out of bounds is 5 yards from the previous spot and a re-kick must be made. However, if the second (or more) kickoff or onside kick goes out of bounds, the receiving team may choose instead to take possession of the ball at the out of bounds spot.
Leaping to try to block a field goal or an extra point is illegal unless the defensive player was lined up at the line of scimmage.
A kicker or holder who fakes being roughed or run into by a defensive player can receive an unsportsmanlike conduct penalty.
Unsportsmanlike conduct will also by called for any prolonged, excessive, or premeditated celebration by individual players or a group of players. This is usually referred to as the "Mark Gastineau Rule" because a major reason why this change was made was to stop him from performing his signature "Sack Dance" every time after he sacked an opposing quarterback.