Jim Brunzell's success as a high jumper paid off when he entered the world of professional wrestling.  "Jumping" Jim Brunzell leaped into the American Wrestling Association (AWA) where he quickly found success teaming with Greg Gagne.  The two became known as "The High Flyers" and defeated Blackjack Lanza and Bobby Duncum for the AWA Tag Team Titles and held them for a year before Brunzell left the AWA, forfeiting the titles.

Jim Brunzell wrestled in singles competition in Mid-Atlantic Championship Wrestling (MACW), winning the Mid-Atlantic Heavyweight Title.  He feuded with the Iron Sheik and at one point stole one of the Sheik's legendary pointed boots! 

Brunzell returned to the AWA where he renewed his partnership with Gagne.  The High Flyers won their second tag team championship, defeating the East-West Connection (Adrian Adonis and Jesse "The Body" Ventura).  Brunzell and Gagne held the belts for nearly two years before dropping them to Ken Patera and Jerry Blackwell.

In 1985, Jim Brunzell entered the WWF and formed a tag team with B Brian Blair known as the Killer B's. Both men wrestled in yellow and black striped tights and they looked fairly identical to one another.  When things got tight in the ring, both men would don masks and confuse their opponents by switching places (behind the referee's back and without a tag) so a fresh man was in the ring.  The Killer B's had a measure of success in the WWF but were never able to win the WWF Tag Team Titles

Brunzell's dropkick was legendary in wrestling and he was able to achieve an unbelievably high elevation with it.