Reunibell's acidic gel quickly breaks down any encapsulated organic material, efficiently absorbing nutrients. Reunibell prefers eating with its mouth, though, so it is often seen poking its head out of the gel to nibble snacks.
At night, a Reunibell hangs on to a tree branch with its hooked rear and sleeps. These remarkably intelligent Pokémon fight by controlling arms that can grip with rock-crushing power.