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.
2d Ga
Aqua
Crazy
Logic
Slope
Gobli
Suita
Zombi
Winte
Ultra
Wheel
Mahjo
Comba
Hallo
Chris
Ambul
Hohom
Save
Sarup
Crazy
Monst
Monst
Bffs
Strik
Fair
Neon
Knife
Baby
Solit
Memor
Sport
Gamel
Speed