Bonus level:To unlock a bonus level, collect all Lums and break all the cages.
The Menhir Hills vines:
To avoid damage at the part in The Menhir Hills where there are vines blocking you from crossing and rockets are flying at you, do not blast them with your fists. Continue to spin in a circle and the rockets will become dizzy and stop attacking you. Jump onto the rocket and cross the vines.
Walk through wall in The Fairy Glade Part 1:
In level 2 when you are about to free Li, continue straight where the first small turn is found. You will go through the wall then fall, but will die.