Lost World (Donkey Kong Country 2: Diddy's Kong Quest)

The Lost World is a secret world that is found in Donkey Kong Country 2: Diddy's Kong Quest and its follow-up Donkey Kong Land 2.

Description
To access the Lost World, the player must pay a 15 Kremkoin toll to Klubba (The Lost World guardian) in order to pass through the other side. The Lost World consists of five different levels, all of a different climate ranging from volcanic to the jungle. The Lost World is also one of the most difficult worlds in the game, but is necessary to complete if the player wants to get the real ending of the game. If the player manages to collect all 75 Kremkoins and clear all of the Lost World, the mouth of Krocodile Kore will open and let the players inside where they face Kaptain K. Rool for the second time. Upon his defeat, the player receives the real ending (with Krocodile Kore exploding and sinking the rest of the island with it).