Snow Go

Snow Go is the second level in Crash Bandicoot 2: Cortex Strikes Back. It is the first snow/ice level to appear in the series, and as such, parts of it are devoted solely to teaching Crash how to use his new skating mechanics on various icy patches in the level. It is also the first appearance of Nitro Crates on the main path of a level, as they only appeared in the secret route in Turtle Woods. The Red Gem can be found in this level - the developers intended for the player to have to unlock this level's (considerably more difficult) secret entrance path in the sixth warp room by uncovering the secret exit in the stage Air Crash, though it can also be reached from this level's main path by fiddling around with a nearby arrow crate.

Trivia

 * This level's name is a pun on the phrase "no-go", meaning to not function properly, and, as such, not go. Appropriately, this level's colored Gem is red, the internationally accepted color of "stopping", aka "no-going".
 * it is possible to get the red gem without the secret route