My kid turned the robot into a scorpion that snaps its claws when you clap, and the RGB LEDs actually sync up with the sound. The light sensor mode is the surprise hit though, he leaves it on his desk as a little lamp that changes color.
Timothy★★★★★
The RGB LED module was the first thing we tried, and my son had it cycling colors within ten minutes of clipping it on. The light sensor makes the desk lamp build actually work, dimming when the room gets dark. Way more fun than I expected from an add-on pack.
Violet H.★★★★★
My kid turned the robot into the scorpion build first and the RGB LEDs made the whole thing glow when it moved. The light sensor works well enough that it actually follows a flashlight across the floor. Took us about 20 minutes to swap everything over, no extra tools needed.