Thank you for the detailed feedback, we really appreciate it. We’ve got a long way to go as far as balance is concerned, much of the work is making sure items work. Some abilities also are supposed to have an effect over time, which has not been implemented. It seems the path isn’t always clear, but once you’ve activated the lever behind the rat, the gate at the entrance opens and you can proceed to two additional levels. Please keep playing and giving us feedback, it genuinely helps us make the best game possible! ☺️