Screw fighting a final boss. I'd be the final boss. Of humanity. Baddest thing there is.
It'll be a cinematic four-form fight against robots, aliens, subterranean dwarves, superpowered freaks, Will Smith, mutants, sorcerers, and hordes of the enemy's finest soldiers, armed with everything from laser and missile platforms in space to spiked battleships packing 80-gigawatt rail cannons. All set to the tune of Frankenstein by the Edgar Winter group. Meaning this would all happen in less than five minutes.
And after the opposition is annihilated and I, in my great mercy, end the infliction of my justice on the world, I'll seal myself into dormancy, orbiting the Earth for all to see until the the people have lost hold of my wisdom and must once again be made to know.
And that is what I did on my summer vacation.