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.
Balle
Skibi
Barbe
Dwarf
Mini
Fishi
Flapp
Endlo
Hippo
Kayar
Boat
Pipe
Mini
Reach
Craft
Batty
Proto
Space
Princ
Block
Wild
Aqua
Turke
Alexw
Grind
Turtl
Stick
Finge
Hosta
Ben 1
Cute
Motor
Zombi