Cool, Cool Mountain is the fourth world in Super Mario 64 and its remake Super Mario 64 DS with an icy mountain theme. Many of the missions are related to the penguins that live there.
The mission Slip Slidin' Away involves an ice slide. In all the other missions, Mario races a penguin to the bottom to gain a star. Another mission is where Mario has to reunite a lost penguin located at the top of the mountain to its mother at the bottom part of Cool, Cool Mountain.
Slip Slidin' Away
Li'l Penguin Lost
Big Penguin Race
Frosty Slide For 8 Red Coins
Snowman's Lost His Head
Wall Kicks Will Work (Called Mario's Super Wall Kick in the Nintendo DS version)
Switch Star of Cool, Cool Mountain (Exclusive to the Nintendo DS version)