that game done correctly would be 10x better than a Batman or Spiderman game just because the better superpowers.
If you played Superman reeutrns on xbox it felt great controlling the guy but everything else was ass, the size of the map was kinda big but still small since superman could fly fast as hell.
Weather & Daylight changes like a real world ala GTA.
Make a bigger world
Open world(Go into some buildings)
Talk to ppl (Like in scarface)
Solid Main Missions ofcourse
Fun side missions that occur during a span of a few days:
Evacuating ppl during Weather Storms
Disarming Bombs
Falling Planes
Astroids falling to earth
Wild Animals on the loose
Muggings
Handle Shooting with cops
Hostage Situation
Burning Building(Big Fires)
Car Fires
Car Chases
riots
Sinking Boats
Colliding Subway Carts
off tarck trains about to fall
Car Crashes prevention
Bursting water supply, Hidrogens
Help put out fires, save ppl from burning buildings
Catch thieves
Stop Bank robbers
Help ppl from drowning
Play as Clark Kent:
Do missions with lois & go into a booth & change into Superman when problems occur.
Drive a Vechicle/Hop out anytime to deal with side missions.
Go on investigations with lois looking for clues change into Superman on the fly
Extras In a free roam world
Go into buildings doing various stuff as clark Kent
Play Games ( Pool, Bowling, Table Tennis, Mini games,etc)
watch trailers
watch Cutscenes
Buy New clothes for Clark Kent
Instead of fighting robots,U should be fighting TIME. Superman's main problem is he has to be in several places at 1 time. Like all the events i named & other real life obstacles could be thrown at em.