I'd invent the following games: Centipede, Asteroids, Pac-Man, Dig Dug and Mario Bros. Every year there after I would release a new console that played these same games with slightly updated graphics.
After ten years of this I would then move my base of operations to the moon where I would live, naked except for a large cowboy hat, in a giant domed hot tub brimming with beautiful 18 year olds. (I'd have new ones shipped in yearly)
Exactly what I'm doing right now.
*sigh*... 
WWYDI I was your father?