Haha, thanks! It's really just a combination of a bunch of old demoscene techniques, applied using shaders. (Also there's refractions!)
My actual plan for the game is that there would only be a few items on the table at a time and they would spawn slowly (like Magikarp Jump), and different drag interactions would cause the slime to react in different ways. And also a bit of a dialog tree. I hope to get to all that stuff eventually.