Crazy Cart is the sixth level in Donkey Kong Country Returns and Donkey Kong Country Returns 3D, as well as the sixth level in the Jungle world. This level's musical theme is a remix of Mine Cart Madness from Donkey Kong Country.
This is the first minecart level in the game, and it takes place in an underground mine shaft and in the jungle. As both Donkey Kong and Diddy Kong travel in their minecarts, they are attacked by Mole Miners in different minecarts, some of which can be jumped on to reach collectibles. Later in the level, the Kongs exit the mines and ride across a bridge above the jungle, where they meet Flaming Tiki Buzzes and more moles, who begin to ride towards them. Bramble also appears in this level. Additionally, the end of the level features a giant hill with a ramp on the end of it, causing the Kongs to shoot through the air.
In the Time Attack mode of the game, a time of 1:46:00 is needed to get a gold medal, a time of 1:58:00 for silver, and a time of 2:21:00 for bronze.
The level starts out with a pathway through the jungle leading to three Frogoons and a raised piece of land with a DK Barrel on it. Nearby are some plants that give items when blown or pounded on, as well as a large switch. If this is pounded into the ground, many platforms begin to fall from the sky. The stone walls supporting the platforms build together like a puzzle, making the platforms completely solid. The Kongs can climb up these to reach a high ledge with the entrance to a mine area on it. Inside the mines, the Kongs can find a room that is almost empty, with only a single lamp in it. However, if they pound on the wooden boards on the ground, they can access a lower area, where they roll down a hill and reach a Barrel Cannon. The cannon shoots them into a minecart, which begins to move as soon as it is entered.
The carts leads the Kongs to some bananas, and later, three Mole Miners in separate minecarts. The last Mole Miner has the letter K just above its head. After passing a small gap, the Kongs come up to a Mole Miner that rides into another gap in which they must cross. A third abyss is just ahead, and another Mole Miner rides right into it. A Banana Coin is right above this gap, and some bananas and Banana Bunches are farther ahead around a Tiki Buzz. After another Tiki Buzz and a Banana Coin is a Mole Miner. Slightly ahead of it is a second track that the Kongs can jump up to. This rail takes them down a small hill, with has the letter O just above it. Farther ahead are some flying bananas. After the Kongs ride under some brambles, they come up to a rather small gap and travel closer to the foreground. The camera is closer to the Kongs, making it harder to see what is ahead. Bananas, Banana Bunches, and other collectibles are in this area, and the camera scrolls away from the heroes just as they pass the Tutorial Pig with the checkpoint.
Some enemies are ahead of this point, including a Flaming Tiki Buzz and a Mole Miner. The Kongs soon come up to an area where a separate track is raised above the normal one. While the higher rails are harder to reach, they lead to an Extra Life Balloon. Flaming Tiki Buzzes and regular Tiki Buzzes are placed between the gaps in this area. Eventually, the Kongs ride down a long hill and come up to a track placed just above the one they are on. At the end of this track is the letter N. The new track leads outside of the mines, where the Kongs ride high above the jungle canopy. Flaming Tiki Buzzes stand in the way of the Kongs as they travel outside, as well as a few mole enemies. Soon after this, the Kongs encounter some moving Flaming Tiki Buzzes and a few gaps, one of which that has three Banana Bunches above it. More gaps and some small sections of the track are farther ahead if this, along with some Tiki Buzzes. At the end of the rails is the letter G. The Kongs must jump off of the track to reach a pathway in the jungle that they can ride down. The pathway takes them down to a large hill with a ramp on the end of it. The ramp sends the Kongs on a new track if they jump high enough; if not, they land on the jungle floor where they can run into a wall and lose a life instantly if they do not jump back on the track above them fast enough. After a small gap, the Kongs reach a bumpy area of the track. They fall out of the minecart when they hit these bumps, causing them to land near a Slot Machine Barrel. The level is completed when the barrel is hit.
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