Do a spin-jump combo to reach a rope and enter the tunnel above. The first bonus area has the Kong Letters in 4 barrels. Spell the letters in order and you’ll receive a Red Balloon. Back in the cavern, bounce off a Slippa and grab on the ropes to find the “K” letter. Go through low ceilings and you’ll see an oil drum releasing snakes. Climb up and bounce off a Mini-Necky to get another DK Barrel. Go through some low ceiling by Zingers and jump off the ropes to go above the ceiling to a secret area. The 2nd bonus area has spinning barrels and the “O” letter. Back in the main area, you’ll find the Star Barrel. After crossing the first set of elevator platforms, defeat a Mini-Necky and fall by the edge to find the “N” letter. Go by some Klumps and ride the next set of elevators. After another DK Barrel, watch for Zingers as you keep riding. The “G” letter is over an arrow sign. After some more Mini-Necky birds, ride an elevator down to a tunnel. The 3rd bonus area has a moving barrel with bananas. Back in the main area, you’ll find the exit.