Playing quarterback, safety, linebacker, and tailback, aside from kicking and punting duties, Guy led Thomson to the Georgia Class A state football championships in 1967 and 1968.

[6][7] Guy was both a punter and a placekicker at the University of Southern Mississippi, once kicking a then-NCAA record 61-yard field goal in a snowstorm during a game in Utah.

[9] He led the nation with an average of 46.2 yards per punt, earning him first-team All-American honors from the Football Writers Association of America.

[12][8] He was also a starting safety at Southern Miss; during his senior season, he set a single-season school record with eight interceptions and was named an All-American defensive back by the Walter Camp Football Foundation.

[9][11][13] Guy continued playing baseball at Southern Miss, striking out 266 in 200 innings and pitching a no-hitter.

Pro Football Hall of Fame historian Joe Horrigan once said of Guy, "He's the first punter you could look at and say: 'He won games.

[20] After a 1977 game against Houston, Oilers coach Bum Phillips accused Guy of using footballs illegally inflated with helium.

[30][31] For many years before his induction, he was considered one of the most worthy players who had not yet been selected for the Pro Football Hall of Fame.

[39] In 2005, Guy helped organize and participated in two-day kicking camps, held throughout the United States, for high school punters, placekickers, and long snappers.