Scooby Doo SwapIt - This is a simple game with a variety of themes. It is a Tetris like game in which the screen is covered with Scooby Doo character faces. When you align 3 or more in a row, all adjacent tiles that match will vanish.
You can only swap adjacent tiles vertically or horizontally. You can swap tiles even if it won't result in a 3-or-more alignment, but that will cost you some points from your current score.