You want as many cats as you can get!
One problem, though - there isn't enough space to keep all these kitties! Don't worry, we've come up with the solution. Stack 'em! Drag and drop as many cats as you can from the cat icon to make your cat stack sky high. Keep an eye out for angry kitties - some are high maintenance and need attention. They will turn red and start angrily meowing when they want you to pet them. Quickly tap the red kitties to pet them before they get angry enough to tip the entire stack over, ending the game and making it rain cats.
Keep stacking as many as you can to see how high your stack can get!