Bubbling cauldron

Vats are massive basins full of bubbling molten steel in the various factory stages in Donkey Kong Country 3: Dixie Kong's Double Trouble! and its Game Boy Advance remake. Vats appear in different depths and colors, but always serve as a hazard that hurts the Kongs and their Animal Friends on contact. Generally they need crossed via ropes above them or by bouncing off other objects or enemies.