The Hard Rocks
The Hard Rocks is the second level of the Blue Mountains, the third world of the original Rayman game. It always consists of three parts.

Part 1
This level is known to be the only one with two exit signs, along with the first part of Space Mama's Crater. Heading to the second one will also lead Rayman to a bonus life.
Part 2
At two moments, Rayman must hurry because an invisible force kills him if he isn't as quick as the screen.
Part 3
Although being really hard, this level contains a lot of hidden bonus lives.