Chief Chilly Challenge

Chief Chilly Challenge is the third boss level of Super Mario 64 DS. Upon completing it, Luigi will earn the key to unlock Wario.

This level is set in a snow world, similar to Cool Cool Mountain or Snowman's Land. Despite being the third and final boss level, it is fairly linear, and reaching the end shouldn't be terribly challenging. Upon reaching the end, Luigi must fight Chief Chilly.

As with the other boss levels, there are two Power Stars that can be found here. One is for collecting eight Red Coins, and can be obtained on the first playthrough. The other requires Metal Wario to reach, and must be obtained on a return visit.

The entrance to this level is the Wario painting, which is in the mirror room on the second floor, although only Luigi can enter it. When Luigi enters the mirror room, Power Flowers will appear, which he can use to pass through to the other side of the mirror. On the other side of the mirror is the Wario painting.