Due to the external material file you can upgrade or change the background, shelves, characters & animations ect to however you wish.
Put the image you want as the background into textures and edit the material file (the background would be "PodBackDropMat" and the texture listed, is what you rename.)
You can replace to robot frame thing with a preset of your own by doing the same thing, you'll recognize the materials for that if you've made a preset before.
Only just thought of that. The mesh for the 2 cats supports 2 passes so you can add transparent sparkle effects or just a single transparent pixel if you wish.