Rodent Ruckus is the second secret level of Autumn Heights in Donkey Kong Country: Tropical Freeze. It is unlocked after clearing Crumble Cavern, the previous secret level, and it is one of the two secret levels in the game that is not unlocked through a secret exit, the other being Icicle Arsenal.
The level marks the first time the Rocket Barrel is used in the game, and its riding sequence is accompanied by a European style cover of "Mine Menace" from Donkey Kong Country Returns, always associated with the Rocket Barrel and more known as its musical theme. The cover itself is simply titled "Rodent Ruckus", just like the level.
The level is set in a cave inhabited by Cheesy Chesters and filled with oversized cheese wedges. At the start, the Kongs will encounter some Cheesy Chesters, then enter the Rocket Barrel. Throughout the sequence, Cheesy Chesters will appear and use the cheese as obstacles to try to damage the Rocket Barrel.
In the first part, Cheesy Chesters are seen swinging on ropes and throwing pieces of cheese to each other. There are also blocks of cheese being lifted or lowered by ropes which the Kongs must also avoid.
After the first checkpoint, the Kongs will enter a darkened part of the cave. Spotlights will then turn on as the Kongs proceed further, revealing more obstacles. Cheesy Chesters will also try to get in the Rocket Barrel's way.
After the next checkpoint, a giant wheel of cheese will come rolling in from the background and in front of the Kongs on the stage itself, destroying all obstacles in its path. While this occurs, blocks of cheese will also drop from the ceiling, and chunks left behind by the cheese wheel will fly towards the Rocket Barrel. Eventually, the wheel will lose a fraction of its cheese; the Kongs must use the gap to avoid the wheel as it slows down and speeds up towards the end of the sequence. The Rocket Barrel will then crash onto the cheese wheel, now a platform being carried by several hot-air balloons, with the Slot Machine Barrel.
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