Fill the board only with happy cats by switching all of the grumpy ones to win each level. The trick is that every time you switch a particular red grumpy kitten a happy yellow kitten becomes grumpy! You need to solve the puzzle as to which grumpy cats to switch in order to make all kittens happy. Can you solve all 60 puzzles with increasing difficulty?
Enjoy playing Happy Kittens Puzzle!
Tap or mouse click to play.