There are two squares attached to each other at the center of the screen. They are in two different colors, blue and red and you can turn them by touching sides of the screen or clicking on arrows. Also there are squares entering from different sides of the screen with the same blue or red colors. You have to turn the center squares so that squares with the same colors match each other when they reach the center. If you fail to do so, you will lose.
Touch on mobile device. Mouse or keyboard(Arrow key) on PC.
Castl
Xtrem
Trz C
Water
Afric
Daisy
Catli
Yummy
Cybor
Hero
Head
Amgel
Color
Cemet
Santa
Stack
Water
Orc A
Tap T
Hill
Pirat
Park
Jewel
Candy
Dora
Runni
Morph
Skibi
Block
Basic
Dove
Alche
Puppe