Fun little game. I wasn't sure about controls at first, but then upon playing with the grapple more I found it interesting. The momma shark looked scary! The music was very nice and relaxing.
The cats would bug out by toppling each other on the boat, which actually turned out to be quite hilarious.
One improvement I'd suggest is to prevent the camera from going under the ground when looking up from the island. I was trying to throw cats onto the boat, but it was very difficult as I couldn't see anything once I moved up the camera.