Incredibox Yellow Colorbox Home Incredibox Yellow Colorbox 0.0 / 5 ( 0 votes ) Your Rating? Discover Incredibox Yellow Colorbox – Play Free Now on YourGame! Incredibox Yellow Colorbox is a fun fan-made version of the music game Incredibox. This one has all yellow characters, each making a special sound. You can drag and drop icons onto these characters to make them sing and create your own music. Try to combine sounds to unlock cool animated choruses that make your music even better. Play the Incredibox Yellow Colorbox game at RegionGame now and have fun. Categories in which Incredibox Yellow Colorbox is included: Car Dress Up 1 Player