This of course the rarest way to score and you see it about once a decade.
Believe it or not, it is possible to get a 1 point saftey the other way as well, but's never once happened in the history of football.
It would involve the offense team on the conversion somehow getting tackled in their own endzone 97 yards behind them.
Hypothetically it could happen if they turned it over and the defense returned it down near the goal line, where the offense forced a turnover back, and then after gaining possession and going into their own endzone.
Basically the conversion try scoring is prety simple and consistent for both teams.
Get it through the uprights = 1 point
Get it into the opponent's endzone = 2 point
Have possession in the field of play and get tackled in your own endzone = 1 point saftey for the other team
This post was edited on 1/4 at 1:25 am