Well... it's Sokoban!
Graphics looks good. Sound effects are fine. Gameplay is as simple as you can expect it to be. All levels were pretty challenging. It was really fun to solve all of them! :D
My only complaint, though, it's that, for some reason, arrow keys don't lock into the game. When you try to move up or down, the entire page scrolls. On the other hand, the game specifically teaches you how to play using WASD instead of arrow keys, so there's that. But still, I think it would be great if this problem with arrow keys could be fixed, since it seems to be a more natural choice for this type of game.
I hope I'm not being too picky in this review. But anyway... nice game! :P