Color Roll 3D 2121 is a fun and puzzle game! A challenging yet relaxing game to exercise your brain! ★ HOW TO PLAY: • Tap to roll, tap again to unroll layers. • Try to arrange layers like the picture ★ FEATURES: • One finger control. • FREE & EASY TO PLAY. • NO penalties & time limits; you can enjoy Color Roll 3D 2121 at your own pace!