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.
Roman
Face
Moder
Fire
Noob
Water
Rome
Lockd
Word
Magne
Land
Poor
Disne
Hero
Mini
Volum
Fidge
Butte
Offro
Stunt
Perfe
Bunny
Xmas
Free
Car D
Chris
Heavy
Block
Numbe
Suv S
Fall
Sauna
Monet