Kremlantis Kaos is the first level to take place in an underwater ruins. The level is the first to take place entirely underwater. Chomps and Fangfish first appear in the level, though Flappers are the main obstacle of the level. Kremlantis Kaos has two exit portals, although both of them unlock the next level, Reef Rampage. Going past the first exit portal leads to an area with several bananas and two Kong Tokens.
When they start the level, the Kongs must swim through the water, going east. They will meet the first Fangfish as they travel between the ruins, and soon encounter a Flapper. At some point, the Kongs can swim down through a small gap and grab the letter K, although having to watch out for a Flapper as they grab it. They need to continue swimming along and dodge a few more Fangfish and Flappers. At some point, they will be able to swoop down under another Flapper and grab the letter O. After that, the heroes must avoid a some more Flappers, until they find the Continue Point.
Halfway through the level now, they should continue east and soon have to swim between three Flappers to grab the letter N. Once they get this, the Kongs need to keep going along the path. Eventually, they will find a small area with several Flappers. They must sneak around each foe and still travel eastward. When they are out of this tight space, the group must swim past a few more underwater enemies and later have to creep between a few Flappers to snatch away the letter G. After they dodge the villains obtain the letter, they need to continue along and soon find a portal. It will take them out of the level. However, if they swim a little farther, they'll find several bananas and a Kong Token, as well as a hidden portal. The heroes can take it to exit the stage.
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