Kumulo and Nimbler are mini-bosses in Melody of Darkness. They, along with three others, must be fought to access Drachaos' chamber. There is no order in which to fight the minibosses.
Kumulo and Nimbler, unlike their Belmont's Revenge incarnations, have legs, and can move around. They can stab their tridents into the ground, and shoot triple fireballs from their mouths. Their legs must be attacked, to make them fall to the ground. Then, their heads can be attacked. Each has 500 HP, equaling 1000 HP in all, and their theme is Resonance of Malevolent Souls.