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Over the next three years he went on to take nearly 30 victories, which had been achieved mostly in Florida, culminating in a win at the Oceanside Nationals in June, 1979. Coached by Barry Zaritsky, Mullen endured a radical training regime, which led to the defeat of world champion Steve Rocco at the Oasis Pro in 1980. He turned professional with legendary skate company Powell Peralta and was a member of the Bones Brigade.

In 1988, Mullen left the University of Florida, where he had been studying Biomedical Engineering for four years.

In early 1989, Mullen left Powell Peralta and started a skateboard company, World Industries. He also maintained his professional status as a rider for the company. By the end of the freestyle competition era in 1990, Rodney had won 33 of 35 freestyle competitions he’d entered over the previous 10 years, the most successful run in skateboard competition history.

The 50-50 is the name of a stance that is similar to a Casper with the board upside-down, but the back foot is standing on the back truck rather than the back tail. The 50-50 is done with a hand holding the nose of the board, or it can be done with the front foot holding up the nose with no hand holding the board up. In this case it is called a No-Handed 50-50. The name of this stance collides with the common Streetstyle skateboarding trick, the 50-50 Grind. While this stance had the name first, other riders use the name Truckstand to distinguish between the two.

Contrary to popular belief, the Anti-Casper is not just a Nose/Switch Casper. It is not considered an Anti-Casper unless half of an Ollie Impossible is performed into a nose/switch Casper. This is usually done by popping the tail, which would begin the half Impossible or half vertical flip, and jumping. Once the board flips half of an Ollie Impossible, it comes down into switch Casper, and is caught with the front foot on top of the nose and the back foot on the underside of the board in a Nose/Switch Casper.

A Shove-it or Varial rotation is regarded as a 180 degree spin (instead of a flip) of the board. Which direction it spins is usually described in the name, such as Frontside or Backside. When called just a Shove-It, it is assumed it is only a Varial 180 degree Shove-It. If it is any higher in degrees, it is stated. For example, a 360 Shove-It must have the 360 stated or it should be assumed to only be 180 degrees of spin.

The Shove-it was always a Freestyle trick as was every other skateboarding trick used in Streetstyle skateboarding. It was done with the front foot facing forward towards the nose, on the nose of the board and your back foot would be used to throw the board. In today's modern Streetstyle skateboarding, the Shove-It is either done Frontside or Backside and the point of action originates from the tail of the board. Only when the rider pushes down and forward or down and backward can the board spin 180 degrees Frontside or Backside. The back foot begins the trick and the front foot either assists in the spin by influencing the board or just jumps if the back foot influenced it enough. In the Shove-It done off the nose, this is done in reverse. The front foot assumes the role of the back foot in that it pushes down and initiates the action, and the back foot either jumps or assists in the spin. It can be done both Frontside and Backside from this way. This is considered the Freestyle and pre Streetstyle era Shove-It. Contrary to popular belief, Frontside or Backside of any kind of Shove-It is not harder than the other if you learn both at the same time. Learning one and not the other may give you the illusion that it is hard to do the other. This would not make sense because another skateboarder may find the harder version easier and your version harder provided he/she learned the opposite Shove-It first. This also applies to the Ollie Kickflip and the Ollie Heelflip. For one who has learned the Ollie Kickflip before the Ollie Heelflip, it may seem harder, same applies vice versa.

In this trick the front foot slides off the side of the board, with the body weight on the back foot over the tail, the board 'snaps' up and can be guided with the back leg/knee. To ride away the rider jumps with his/her front foot back on. The No-Comply was commonly used by street skaters in the mid to late 80's, most commonly being done off parking blocks by bumping the tail off them. This trick has many variations, including 180, 360, Varials, Flips, Fingerflips, Impossibles, et cetera. Ray Barbee is noted as a master of No-Comply variations to many who have watched the earlier Powell videos.