head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
Gravity-shifting action adventure about falling sideways through a floating city.

Execution · Practiced Mastery
A deliberately paced shooter testing easy aim and light build choices in scripted missions.
Gravity Rush leans Execution (Practiced Mastery); RoboCop: Rogue City leans Execution (Practiced Mastery).
Gravity Rush leans a little harder on execution, though the gap is small.
Gravity Rush
Aerial gravity-kick aiming takes spatial control
RoboCop: Rogue City
Deliberate aiming with a tanky hero, light demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Gravity Rush
Nevi enemies are scripted
RoboCop: Rogue City
Criminal AI runs simple fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Gravity Rush
Authored world, minimal randomness
RoboCop: Rogue City
Linear missions hold little hidden or random
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Gravity Rush
Gem farming and upgrade priorities
RoboCop: Rogue City
Skill points and pistol upgrades structure modest build planning
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.