Cat and Cat (WIP)

In this cat puzzle game you have to trace a route over a 7x5 grid for two cats to make them arrive home. On the route, each cat interacts automatically and differently with the elements laid in the grid. This a WIP project and the current release is the very first prototype. I am really looking forward to any feedback, and especially on the game main mechanic: Is it fun / could be fun (if improved)? Is it challenging? Would it scale well (like 100 levels)? Would you considering adding additional...