It has a pretty neat decor and presentation which makes this complex a unique piece of home decor as well, even if you don’t have cat friends in the house. It’s time you make your kitty a bit more driven towards the Mario world by bringing her this visually awesome Mario Cat Complex. For those husky kitties jumping over your curtains and furniture every now and then, here’s a perfect way you could keep them busy while retaining your indoor charm. The set is a marvelous combo of two dark red boxes with a question mark box in between. This Mario-inspired cat complex has dark red boxes, a yellow stained question mark box and green pipes.