Instructions
Turn to the right of the room after you defeat the Spinner. Use a spin attack on the valve in front of you.
Follow the valve to the left. Jump over the stream of thinner in your way. Jump onto the crate to reach the next valve. Do a spin attack on that valve to break it.
Climb on the structure that falls to the ground and defeat the Splatter enemies with thinner.
Paint in the pillar that fell with the structure and jump on it. Double jump onto the walkway and use paint to befriend the Sweeper enemy. Keep heading right. Jump over the grates and free the Gremlin from its cage.
Head through the gate that opens when you free the Gremlin.