Fiery Furnace (Donkey Kong Country 2: Diddy's Kong Quest)

Fiery Furnace is the fourth level of the Lost World in Donkey Kong Country 2: Diddy's Kong Quest, as well as the third level of that world in Donkey Kong Land 2. It can be accessed via Klubba's Kiosk in Gloomy Gulch in Donkey Kong Country 2, or in the overworld for Donkey Kong Land 2.

This level is set in a volcano, and the Kongs must use special Steerable Barrels unique to the level in order to cross the lava. Since the Steerable Barrels are timed, and because Zingers are in the Kongs' path, it will take a lot of determination to get through this level. The barrels are scattered throughout the level, and the Kongs will have to maneuver around the area with them, without hitting enemies. In Donkey Kong Land 2, Steerable Barrels are not present, and are instead replaced with normal Blast Barrels. Other than Zingers, the enemies here include Kutlass, Klampons, Krooks, Spinys, Flitters and Cat-O-9-Tails.

Bonus Level(s)
Near the end of the level, the Kongs will notice a trail of bananas above a Cat-0-9-Tails leading up to a Steerable Barrel. They must use their Team Up move to throw a monkey into the barrel and pilot over the trail. Soon, they will reach the Bonus Barrel. In it's Bonus Level, the heroes must maneuver through a bramble area inside the Steerable Barrel. The track is thin, and they may not hit the spikes on the side, as well as the Zingers. If they do hit them, they'll be taken out off the bonus. Once at the end of the stage, they must shoot out of the barrel and grab the DK Coin.

Golden Feather (GBA Only)
While crossing the abyss where the letter O is found, they Kongs should come across the Golden Feather. It is between two Zingers, though, so they must use more of their skills to get it.

Bonus Level(s)
Once shooting out of the level's final barrel, the heroes should travel to the left and jump over a Zinger. If they continue to the left, though, they will find the Bonus Barrel, leading to the Bonus Level. Here, they must hit a couple of Krochead Barrels. Krocheads will suddenly emerge from the fire, and the monkeys can use them as stepping stones. When they get to the end of the stage, they will find the DK Coin.