This is like any other nation roleplay, where wars are fought, business made, lives lost...And mutated cyberneticly enhanced dinosaurs with Gatling gun arms run for president. Creating your own nation, this can be set amongst the stars, or on are little blue planet, with ninjas throwing dynamite onto modern armour and zombies cruising around in space fighting giant talking fruit. The nation can be made up of any race you can think up, the more entertaining the better. Now you'll be thinking they'll be problems with balance, as the zombie chairs wielding table catapults face off against cyborgs with flamethrowers coming out their eyes and boom boxes for hands. Well, throw that sense out the window and add some awesome/ridiculousness to the mix! A pirate captain with his trusty broom can smack a fighter jet out of the air if its described awesomely and hilariously enough. This idea can still be built further upon, as Mad Worlds always ever changing, and you never know what the hells gonna happen in the next twenty minutes.