Anything I wanted.
Likely kill a few people, bring them back to life, make all the lost board game pieces rain from the sky, punch people as they eat, eat a waffle the feel awful because I forgot to make it a chocolate chip one, make the perfect sword, disobery signs that say "Do Not Walk on Grass," disturb people who put up "Do Not Disturb" signs, eat Jell-O with Bill Cosby, play a good 3D Sonic game, drive around in a walking battle mech, go to Tokyo and yell "GODZILLA!!!!" before walking away like nothing happened, turn into Godzilla a week or so later and get a slurpee from a gas station and not pay for it.
Nothing overly different than I already do.