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.
Match
Tina
Littl
Monst
Knife
Lol S
Grass
New Y
Slend
Pet S
Poppy
Blow
Top S
Prega
Ether
Under
Grand
Pet F
Sudok
Stron
Incre
Sweet
Bubbl
Jelly
Snowy
Space
Draw
Piggy
Resid
Candy
Speed
Carro
John