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.
Tft G
Bff N
Car T
The A
Inqui
Super
Heart
Stack
Helix
How T
Among
Prado
Buddy
Night
Tripl
The T
Tomat
Monst
Jet S
Marbl
Diwal
Tikto
Ice Q
Troll
Black
How T
Pong
Save
Fish
Run
Flywa
Doodl
Drive