Play Sonic Slide
This game seems quite easy. All it requires is nine tiles in the right order. You'll quickly discover this game is actually quite challenging. You're only able to move one tile at a time. This limitation forces you to plan your moves wisely.
You can move a tile by clicking it. However, the tile you want to use has to be touching the blank space on the board. Clicking a tile will move it to the blank space. If one side of the tile isn't touching the blank space, you will be unable to move it.
Keep in mind every tile you move is going to affect the rest of the game. If you get stuck or experience a surprise you didn't want, take a deep breath and think about how you're going to move the tiles in the direction you want.
Directions
Select: Left Click