Wow, I'm impressed... I actually got addicted to the game and played the whole thing through without realizing. Wow!! :D
The gameplay is very simple and I've seen this sort of puzzle many times before, yet I still think they're really fun to play :^)
Also, while playing the game I didn't think that much about it, but it was at the end when I realized just how weird the plot of the game is xD A puppy... with no real bones. That's perhaps why it was chasing the bones in the first place xxD
Anyways, fantastic job on this game! It feels polished and is definitely playable ( considering I beat it and had fun ). Keep up! ;)