Successfully complete the Ski Patrol Chief challenge to unlock the Helidrop level.
Successfully complete the Do Not Enter challenge to unlock the Moon Gate level.
When on an area that has a bomb, jump immediately before it then land on it. This requires some practice. When timed correctly, you will be able to get a quick special move in for an extra 6,000 or so points. This is useful for beginners that do not have all of their equipment yet.
Pause the game during any trick. When the game is resumed, your character will resume his or her position and you will receive the points from the trick, even though it was not landed.