Firefall Cliffs

Firefall Cliffs, or Peach's Castle-4, is the secret fourth course of Peach's Castle in New Super Mario Bros. U. It is unlocked via secret exit of Meteor Moat and its own completion unlocks Red-Hot Elevator Ride.

Layout
This course is an autoscrolling course that involves climbing walls and dodging fireballs. Fireballs fall from certain points, and the player must climb on certain parts to make their way through.

Star Coins

 * Star Coin 1: Use the POW Block to make a Star Coin drop before fireballs destroy the platform below.
 * Star Coin 2: Stick to the left side of the first climbing section for the second Star Coin.
 * Star Coin 3: Stick to the right side of the second climbing section for the third Star Coin.

Enemies

 * Koopa Troopas
 * Volcanic Debris