To use water to control the space war integrated circuit.
Build the circuit shown on the left, including the jumper wires going between it and the cup of water shown. There will be sound as long as the wires are in the water. Placing the wires out of and then back into the water will change the sound played, there are eight (8) different sounds.
- This circuit is dull and doesn't always work, and was replaced with Wacky Sounds in REV-G.