All the kongs defeating their respective bosses, but special mention goes to Tiny Kong for defeating Mad Jack. It's basically a battle between a little kid and a giant, nightmarish living Jack-In-The-Box that takes place high up on several pillars. Tiny faced up against what is often cited as the most terrifying boss in the history of the DK series and came back victorious.
Storming Hideout Helm is one all throughout. The music, the timer, and the fact that you have to use all five Kongs to work together to reach the end, as opposed to everyone going their own ways to find their own bananas.
The final fight with K. Rool is definitely this especially the final round with Chunky. Chunky after making K. Rool visible transforms into Hunky Chunky to go toe-to-toe with the Kremling King himself, and sucker punch K. Rool across the arena. And after the fourth hit, K. Rool is knocked out and Chunky is declared the winner. Remember, this is Chunky, who previously bowed at the feet of a giant dragonfly, was able to take out definitely the scariest guy in the game!
To play off of that, K. Rool managed to wake up and is about to attack Chunky. Until Candy Kong comes out and distracts K. Rool long enough for Funky Kong to come out with a large boot gun and literally kick K. Rool's ass right out of the area. To put the cherry on top, K. Rool ends up right in K. Lumsy's cage who finally gets his revenge by sending K. Rool flying away. Cue celebratory end credits!
The rest of the Kings are no slouches during their respective rounds either. Round 1: Donkey Kong launching out of barrel cannons to hit K.Rool in the face. Round 2: Diddy Kong. The little guy puts on his jet pack and shoots the spotlights over the ring to fall on K.Rool’s head. Round 3: Lanky Kong. The goofball makes K.Rool look like the real idiot by making the Royal pain(who’s still stuck in a spotlight btw) slip on giant banana peels. Round 4: Tiny Kong goes teeny tiny and runs into K.Rool’s boot to tickle his toes with the feather gun til he can’t take it anymore.
