A good FPS will have an elderly gentleman who wears a top-hat, spews one-liners that make him sound like grandpa, but funnier, and he shall bust out of a retirement home using a cane, throwing things and what other things he can find. The retirement home shall serve as a tutorial for him to step into an open world where he could be a goodie-two-shits, a sneaky bastard, a rich business tycoon, or a criminal mastermind who takes over the city with an army of old people from the retirement home.