Toxic Tower is the thirty-third level of Donkey Kong Country 2: Diddy's Kong Quest, and the sixth area of K. Rool's Keep.
This castle level is the final test before the Kongs finally reach the top of K. Rool's Keep, and it's far from easy. For one thing, poisonous slime is on the rise, and the Kongs must transform into Rattly, Squawks and Squitter throughout the level in order to keep going. As if the slime wasn't enough for the Kongs, Klampons, Kaboings, Kannons and Zingers are there to get in their way and put an end to their adventure.