One day Vinny was playing Mario when he realized everything was too happy, so he came up with a new character named Sponge. You may have realized that the Mario universe is very happy. This is due to Sponge, an orange plumber(?) with an even bigger mustache than Mario or Luigi, which soaks up all the sadness in the world, making him depressed. Not helping his mood disorder is the fact that no one cares about him, even his own brothers.