The final world adds building sites, balloons, automatic ropes and switch-controlled barrels. Check every missing bonus mark before King K. Rool, then save the completed collection after the credits.
Construction Site Fight
Ride the rising balloons and leave each before an overhead obstruction catches you. From the first balloon, jump left to the barrel for Bonus 1. After the Continue Point, pass the Hogwash, balloons and building. Bonus 2 is high above the third and fourth barrel cannons in that section; N is on the controllable-platform route inside.
Kong Krazy
The early letter sets build bridges. Collect each complete set before activating its KONG switch or the bridge remains incomplete. Those construction letters are separate from the later genuine KONG set.
For the single bonus, cross the third letter bridge and follow the banana trail from the high step onto breakable ground. Take the rope to the room containing the real K. O, N and G appear later along the remaining main route, letting you save after finishing.
Balloon Barrage
Watch the balloon’s height before jumping near a Mincer. At O, climb down the chain to Bonus 1. Use a roll jump inside for Kong Tokens and collect the fast-rising Life Balloon. For Bonus 2, drop directly below N. Avoid the room’s two Mincers and leave by the left side.
Fast Barrel Blast
Wait for a clear flight path past the Mini-Neckys and Zingers. Shortly after the first Mini-Necky, follow the banana trail from the high step onto weak ground for the rope to Bonus 1. Near the end, go left along the upper step before descending to the exit. Roll-jump into the hidden barrel for Bonus 2. The tire inside reaches G; use the cave entrance to return.
Skyscraper Caper
The ropes automatically carry you up or down. Watch their direction before transferring, especially beside Zingers. Follow the relevant ropes to their ends for K and O. For the single bonus, pass the Krusha after the Continue Point and cross the ropes above the gap. Climb the third rope and jump to the next rope and barrel. N lies between two fast Mincers in the underwater room; G is later on the main rope route.
Button Barrel Blast
Use the floor buttons to set the barrel direction before entering. After K, reach the button at the end of the girder and aim down toward the single banana for Bonus 1; O is inside. After the Continue Point, aim the first barrel right. The following barrel sends you left into Bonus 2, containing N. Both letters require these side routes.
Oil Drum Slum
Wait for a flame to withdraw before passing its oil drum. From the rope with O, jump to the tire on the left and bounce to the platform’s barrel for Bonus 1. Swim past the fish inside for the Life Balloons.
Near the end, keep the only TNT Barrel beyond the Krusha. Use it to destroy the blocking oil drum on the right, then follow the opened route to Bonus 2. Throwing it at an ordinary enemy leaves the intended entrance blocked.
Boss: K. Rool’s Kingdom
Jump over King K. Rool’s thrown crown, then land on his exposed head while he runs. Reset your position after each hit so that you have room to clear the next attack. After six hits, he changes to a running, jumping and bellyflopping sequence. Dodge it rather than waiting only for another crown throw.
After six jumps, he returns to the crown-and-run cycle at higher speed. Land six more hits to finish the battle. After the credits, revisit any map point missing its bonus exclamation mark. Complete the remaining searches, finish a level with K, O, N and G, and confirm the save for the completed 100% file.