Risky Reef is a level in the Aqua World area of DK: King of Swing, and also one of the four levels that must be completed to unlock the world's boss level, Davy Bones' Locker. Either Risky Reef or Lockjaw Falls can be completed to unlock Kremling Kamp.
Risky Reef is the first underwater level, and enemies of the level include Lockjaws and Shuris. Because the level is underwater, Donkey Kong moves slower than on land. This allows Donkey Kong to control his movement more easily when jumping from pegs. Obstacles in this level include barrels, Barrel Cannons, tires, Peg Boards, and pegs that move in a large circle and sway with the water.
At the beginning of the level, there are two rows of four single pegs that sway slightly to the left and right. A trio of peg boards are above. A banana rests on each of the three boards. A fourth peg board is above them with two walls around it. Donkey Kong can reach the top of the walls and use them as platforms. Two separate rows of four pegs are on the pair of walls. The pegs sway a little bit with the water. Three stationary pegs are above, and a Lockjaw floats above them. Two peg boards are to the left and right of the foe, with one banana resting on each of them. Trios of pegs are above the two peg boards, and a third trio of pegs is between them higher up. It can help Donkey Kong climb to a Peg Board with another banana on it.
Two platforms stand on the sides of the board, and four pegs sway on the left platform. A Bonus Barrel is above a Lockjaw in the center of the area and can be reached by using the pegs. He must take the platform to the right of the area to continue to the second section.
In the second section, Donkey Kong must climb up Peg Boards in a narrow path while avoiding the Shuris along the way. As Donkey Kong climbs, he comes up to a barrel in a small alcove that he can break to find a Banana Bunch. A pair of Shuris attack him in this area, and a trio of barrels are soon after them that block the Kong's path. The curvy trail of peg boards continues after the barrels, which more Shuris swim around. Another barrel sits in an alcove above a few of the boards. Shortly after, three more barrels block the ape's path, and the trail of peg boards goes on ahead, with a third barrel being seen in a small alcove. As before, Shuris attack Donkey Kong as he approaches a wall of three barrels that block his path. A few peg boards following the barrels have a ledge next to them that leads into the third and final part of the level.
In the last section, Peg Boards of all sizes are scattered around the area. Near the center of the area, a barrel can be found that makes a small peg board appear when destroyed. The Peg Board can help Donkey Kong reach another one at the end of the section, which has a barrel with a large Banana Bunch in it. A Barrel Cannon is right under it that shoots Donkey Kong back towards the cluster of peg boards. Lockjaws patrol the areas around the peg boards. Near the bottom of the area, the ape can locate a barrel that can broken to make a peg board appear next to a rock wall. If he breaks through it, he can find a large alcove at the southeast corner of the area with Barrel Cannons that blast him to the Banana Bunches through the alcove and then back to the Peg Boards. Trios of pegs above some of the boards can help the Kong reach a group of pegs that move in a large circle. Tires are placed around them, as well as a Question Barrel that can be broken to reveal a trail of single pegs that lead up to a hidden ledge with another barrel on it. When it is destroyed, a bronze medal is released. A Barrel Cannon is above the medal, and it can blast Donkey Kong through some bananas and back towards the circle of pegs. If Donkey Kong breaks the barrel to the right of these pegs, he can reveal some new pegs farther to the right that can help him reach a high ledge with the exit sign.
The Bonus Barrel is guarded by a Lockjaw near the end of the first section. In the Bonus Level, Donkey Kong 40 seconds to collect many Banana Bunches by using many individual pegs placed far apart from each over a large gap. After collecting all the Banana Bunches, Donkey Kong can grab the Crystal Coconut at the end.