- Clear Gem - Destroy 16 chests.
This is one of a few levels in which you must almost always be on the move. In this case during majority of the level Crash will have to be escaping from a giant stone ball while jumping over chasms on his way.
Completing this level isn't as hard as it seems - Crash won't be immediately crushed even if you stop somewhere for a short while. Focus mostly on jumping in order to avoid the small fences and chasms while escaping from the rock. In addition to that, stay cautious and use spin attack when you see a wooden chest.
The game will give you a chance to rest in a few small corridors like the one on the above picture. There you can destroy new chests and/or unlock a checkpoint. There are 16 chests to destroy and you can find all of them during your first attempt at completing the level.