Make all Zoobies the same color. You start with 1 Zoobie (top left). Change your current Zoobies to another (pick a Zoobie on the right) and grow your group of the same Zoobies.
Other
Marcelino 
Save The Sheriff 
Racing Fire Car Jigsaw 
Hurricane Aftermath 
Extreme Blocks 
Alien Assault 
Massive Battle 2 
Playground Differences 
Tractor Trial 2 
Speed Maniac 
Xmas Connect 
Cowboy VS Martians 
Last Tank Standing 
Turkey Derinkuyu Mystery Cave 
Vexed Zoobies 
Off Roaders 2 
Classic Pac 
Gazzoline 
Snow Queen 4 
Tower of Hanoi 
Circus Hidden Letters 
The Pizza Guy 
Party Jong 
Race Against the Traffic 
Brick Building 
Christmas Mahjong Connect 
Hidden Kitchen 
Space Cubes 
Freecell Klondike Solitaire 
Mini Cooper Differences 
House Of Alien Trap Escape 
Ice Hockey