There are 3 games with the record of most penalty flags used. These 3 games have all had 22 penalties occur. Two games were in 1944 with Brooklyn taking on Green Bay and the other game was Chicago taking on Philadelphia. Fifty four years later, there would be another game in 1998 with 22 penalties when San Francisco took on Buffalo.
The NFL penalty flags were never red. They were white. They changed the flags from white to yellow in 1965.
Gold
Gold
There have been fewer than five NFL games that have been played without any penalty flags thrown. The games occured during the 1930s and the 1940s and there have not been any flag-free games since (as of August of 2013).
According to the NFL rulebook, illegal formations, motions and substitutions all carry a five-yard penalty.
The flags are red and yellow
There are no points for penalties in an NFL game.
the first flags
15 yards is the penalty for spearing.
I think it is loss of down or a 10 yard penalty.
No it is not.
It is a ten yard penalty - Vikings vs. Steelers 10/25/09