Every time you make the correct pattern, the game becomes difficult. The game starts easily when you have only two or three changes to make. Required changes start to increase as you progress through the game. And the real fun begins when the small grid which you observe starts to rotate.
Soto
Arrow
Black
Balap
Bubbl
Skate
Crazy
Toy C
Hippo
Metro
Memor
Anima
Super
Princ
Fz Ha
Gun M
Skibi
3d Bu
Ball
Santa
Baske
Sven'
Brain
Road
Frida
World
Rapun
Unico
Ancie
Find
Coron
Stick
Brick