I was having a lot of fun playing this game and I got up to 8 pups when I encountered this glitch, my viewpoint kept falling down and I couldn't move, as the doors started rapidly moving past me, gaining speed as the time ticked by, the "arf arf" sound became more and more distorted, I had found my last pup fairly quickly so I had 84 seconds to watch reality zoom past me in real time as the clock counted down, mocking my inability to find another good pup to pet. I will try to play the game again later but figured I should let someone know about this glitch. ^^
edit: I am playing on a MacBook Air if that helps