Click both cats. When you're sick of it, just press 0, and if you want to see the whole thing again, press 1. After that, just do all of it again. If you don't hear noise, try again, but click the other cat first.
This is similar to one of my other projects. I had an unfinished version of this that didn't work so I decided to make an entirely new project. This version is cooler, easier and much more fun!