Here is how to Helipop.
2) Start by riding nollie.
3) Begin your nollie and 360 at the same time, if you do it wrong then wave goodbye to the trick. 360 degrees is a lot, so swing your arms in the direction you want to spin.
4) Spin, spin ,spin! Make sure you don't lose control of your board... if you fail in this part, try 180 nollies first.
5) After a 270 rotation, slam your back wheels down, turn 90 degrees on the back wheels, slam your front wheels down, and wham, you just nailed a helipop.