[3][4][5][6][7][8] Former quarterback Tim Couch has the most walk-off touchdowns from throwing Hail Marys in the NFL with two.
[11] A walk-off extra point or two-point conversion are when an extra point is kicked or a two-point conversion is scored with :00 on clock & during the last play of the game.
Again, the winning team must have been tied or losing at the beginning of the extra points play.
A walk-off safety is a play that has happened 3 times in the NFL, all in overtime.
During this type of play, either team could score a 1 point conversion safety.