If one day you found system (like any novels) which you could choose any powers besides big 3 [omnipotence, omniscience, omnipresence] and have access to travel any worlds in any time such as anime, films, ln etc and therr is multiple worlds so don't mind destroying one you change it to another world as good as new. So what would you do?
I'd just travel to random worlds and explore them and everything that is common there, such as different food, opinions and other stuff. So basically go on an adventure. If you can't really die then what point is there in doing anything big? Can you eat world domination?
probably I would choose kinetic control. basically it would allow me to move anything as I pleased as well as giving me control over most of the elements to some extent. I could also fly which would be neat except that I don't like heights.
Hmm either make my own religion(?) and come to each world as 'alien' and take over the worlds i travel to ...........or become a merchant selling rare items i find from my travels Probably prefer the former, since could get rich+harem+followers+brainwash ppl >.<"
the creation and deconstruction... the ability to create anything that i can think of, not include living being and to deconstruct the things that i made..
Live out eternity watching over and helping the little ones(lesser mortals) in between reading/watching manga, light novels, webnovels and anime. As for my personal needs I'm unsure if I'll just woo random women like the gods of old, or create something like a homunculus... Maybe both xD
Save and Load. And just general leveling, like Death March or The Gamer. But with a stat that affects lifespan in there. Share the leveling part with whoever I chose.
Material and biological modification, infinite mana (or equivalent) and rune magic of the highest level. I’ll make a floating island and travel between worlds. Trading, taking in interesting people, etc.
That's the fun part you can equip any super powers anytime in your leisure visiting different worlds.