What are some famous skateboarding tricks that Eric Koston invented?

Frontside Flip: The Frontside Flip involves the skateboarder flicking the board with the front foot, causing it to flip one full revolution forward while staying parallel to the ground. It is considered a signature move of Eric Koston and has become a staple trick in skateboarding.

Backside Flip: Similar to the Frontside Flip, the Backside Flip involves flicking the board with the back foot to make it flip one full revolution backward. It is another of Eric Koston's signature moves that revolutionized the skateboarding scene with its technical difficulty and stylish execution.

Inward Heelflip: The Inward Heelflip is a trick in which the skateboarder flips the board inward and toward the body with a heelflip motion. Koston's version of this trick requires a specific positioning of the body, making it a highly challenging and visually striking maneuver.

Varial Kickflip: The Varial Kickflip combines a Kickflip (flipping the board along its longitudinal axis) with a Varial (spinning the board around its vertical axis). Koston's Varial Kickflip is known for its consistency, height, and control.

Nollie Big Heel: This trick involves popping the skateboard into the air with a front foot "nollie" pop and then performing a big heel flip. Koston's Nollie Big Heel is known for its powerful pop and stylish execution.

These tricks are not solely attributed to Eric Koston, but he is widely recognized as a pioneer in skateboarding who elevated these maneuvers to new heights, earning him a reputation as one of the sport's most influential and respected figures.