Transcribed from K. Rool's story in Golden's video:
"While skimming the treetops, looking for any Monkeys to Mangle, K. Rool discovered an Ancient Temple Ruin. After setting his plane down in a nearby clearing, he headed for the entrance, and with makeshift torch in hand, stepped inside. With just the flickering light from the torch, he moved silently along the dusty old corridors, checking for traps! At a dead end deep inside, he found a stone tablet. K. Rool picked it up and with one hand brushed away the thick layers of dust. He brought the torchlight closer and saw a beautifully painted frieze. The Kremling King cast his eyes across the symbols. As he tried to make sense of them, an idea entered his head, and he said out loud, It looks like a map to ... ... ... ... to Eldorado!
With the tablet as his guide, K. Rool set off to try and find the place he believed to be Eldorado, the mysterious City of Gold. He followed the path of symbols and covered all four corners of the globe. He searched high and low, through rain and snow, but no matter how hard he tried, it just seemed like he was never going to find it. Then out of the blue he spotted a tiny island far below. He thought he could just make out a huge gate on the far side ... was this it? Seeing a flat piece of ground near the gate, he pulled the plane into a steep dive and headed down to check it out! K. Rool was amazed at the door's beauty right up close, and his vivid imagination ran wild, wondering what riches lay beyond them. Several small footsteps to his right stole his attention for a moment.
So, another adventurer has found their way to our door! There have been many before you Mr. Lizard. Even that silly Cranky Kong has tried to get past these doors -- but left empty handed! Do you think you can do any better, hmmmm?
I do everything better than that old goat, so this should be no problem at all for me. After all I am the King of the Kremlings! Anyway, the tricky bit was finding the place -- now I'm here it should be relatively simple.
If you say so! I am Nikiki, the First Guardian of the Gate. Only we have the magical powers to open these doors. For us to do this, you must complete a series of tests. These are four in all, but no one has ever passed the first one!
Look, you might as well open the doors now and save us all a lot of time and effort! No? ... ... OK, then, tell me what I have to do, so I can get it over with as soon as possible.
You should not take the tasks lightly. They have been selected to guard the four magical stones that can open the doors. The first task takes place in Crackpot Keep, so that is where you will begin your quest. The Fire Stone is locked under a grille in the centre of the Keep. Collect all four keys within the time limit to get your hands on it! However you will need to avoid the mines that surround them. Some can be shot and others can't -- this isn't easy. Good luck!"