Take either the Corkscrew or Back Scratcher skill at level 8, and save your skill points to buy the Mad Monkey or Jungle Gym at level 10. Upgrading your boost skill early is mostly pointless, because you only get 1/4 of a second added to your boost meter, and buying a higher-tier trick will give you a greater amount of boost for doing the trick than the small amount you would have gotten from the boost skill. 2) When unlocking skills when you level up, you should spend the first few points on new tricks and always grab the Agility skills as soon as they become available.
