Okay, that was a traumatic experience, but I loved it! :D
The game started with such a calm atmosphere as I tried my best to build a house with that floating hand. It would go out off-screen, and I'd have to get it back, but I finally thought I was done. I picked up the hammer to finish the job, carefully dragging it across the screen, focused and determined. I was nearly there when BAM! My pet ended up as just a pile of blood! That was so unexpected :DD
The ending was sad but very well fitted for the game idea. Overall, I loved the idea and the implementation. The fact that you can accidentally kill your pet really made the game more unique. The art was really cute, too. My only feedback is about the hand movement. Less floating would have made the experience more enjoyable, or even just having the hand stay right on the mouse pointer (without any acceleration) would help a lot.