Your dream FPS game might come true, no joke, but in computer. If you ask how to create FPS games in computer, just ask me.
Example:
Name:Spongebob invaders Type:Realistic time(Now) Storyline: Spongebob and Patrick realized that some space aliens came to earth. They destoryed everyone except kelp city. Bikini bottom destroyed... Spongebob, patrck and that strong populated city is still alive. Bad contents: Fantasy Violence 10+
Then put 5 other descriptions like:
Vehicles: Boat Mobile, sewer boat, flying dutch mobile and sea horse Weapons:Bubble gun, jelly gun, crab sword and spatula Grenades: Jelly grenade or bubble mine Characters to pick: Spongebob, Patrick and sandy Graphics: 4.5Gb +2.3 PhsY= Good graphics