Ultimate Castle Challenge

Castles - Masterpiece Set is the last secret level and last level of Super Mario World 2: Yoshi's Island. In Yoshi's Island: Super Mario Advance 3, it was renamed Ultimate Castle Challenge. It is possibly the hardest level of the game in the original version, though is a secret level and not required to complete.

Level Areas
Part 1:Caged Ghosts and a Mace Guy appear.

Part 2: Moving platforms over and under spikes and thorns.

Part 3: Flatbed ferries under and over thorns, super-fast platforms that head straight into spikes.

Part 4: Different music starts. Carefully ride on a flatbed ferry, avoid being knocked off by Sluggers and Green Gloves.

Part 5: Ground-pound down a long tunnel and avoid being knocked into thorns lining the walls by Green Gloves.

Part 6:It is similar to part 5 only with the absence of thorns.

Part 7: The last part. Ride an underwater flatbed ferry going straight under thorns and reach the goal.