As you head right from the start of the level, you will come across some conveyor belt platforms. When you get to the second one, time your movement to miss the piston and then jump down to get the DK Barrel. Now jump back to the left onto the conveyor belt. From there, jump to the left to get atop a red platform where the first Puzzle Piece is located.
The K KONG letter is easy to reach. Just get past the piston and then jump up to grab this first letter.
The O KONG letter is up high between two platforms. Wait for a BuckBot to come by and then jump off of it to get high enough to grab the O KONG letter.
Once you have the O KONG letter, land on one of the upper platforms. If you can’t get high enough, go to the right and jump onto a small block platform. From there, hover-jump to the left to access the higher platform here and blow on the lightbulb to release a Puzzle Piece.
The next Puzzle Piece looks hard to get but is not difficult at all if you know what to do. Jump onto the piston that moves up and ride it into a hidden area. Here you can pick up lots of bananas and the Puzzle Piece before dropping down to the right.
This area has a large section that comes crashing down on you. Rush forward and stop where there is a small cutout in the press. Then run to the second cutout and wait. Once the press lifts up again, pound on the cracked section of the platform to the left to enter a bonus area. Clear out the coins and bananas to get a Puzzle Piece.
The N KONG letter is located to the right of a group of Electroids. Make your way to the top platform, and as the Electroid on the far right moves toward you, hover-jump over it to get the N KONG letter before dropping onto the lowest conveyor-belt platform.
Soon the level goes vertical, and you must time your movements to get past pistons. Wait until the piston below the heart and Puzzle Piece retracts, then jump up and roll to the left, jumping up to get the Puzzle Piece before you get smashed.
In order to get the G KONG letter, jump up on the right-side ledge after the piston below the letter retracts. As it extends to the right, jump down onto the piston and ride it to the left, jumping up to get the G KONG letter. Then get back to the right-side ledge so you don’t get smashed. Continue up through more pistons to reach the Slot-Machine Barrel and complete the level.