A Light in the Dark

A Light in the Dark is the third secret level of Yoshi's Island DS. It has 3 main sections. This level could be the hardest level in the game.

Layout
This level is split into 3 different sections, a warehouse-filled area with spikes and thorns. After getting 2 keys that are found within 2 of the rooms you can get to the second section. The second section is a snow-filled area with a skiing segment where you have to master platforming. It can get really difficult if you're not careful as there is a lot of ice rocks. The third area is a dark lagoon-themed area with spikes and stuff and at the end awaits the Goal Ring.

Trivia

 * Many fans consider this level to be the hardest in the game.