Not invisible, you perverts. Invincible. Though you might as well be the same. NOTHING can kill you. You are immortal.
BUT, you are still constrained by the laws of physics and all that good *&^%. Meaning you don't have super human strength to go pick up Dsong's huge head or super human eye sight to locate his miniscule cock. You are human, in all regards, except you are immortal.
What would you do? Anything immoral? Try to take over the world? Or try to do some good, like fighting crime?
I for one would love pulling the super hero *&^%, make up a costume, and go around fighting crime and saving little babies. And of course, banging hot Korean chicks. I will leave world domination to George Bush