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
An open-world revenge tale where a new shapeshifter hunts Alex Mercer through plague-zoned New York.

Execution · Practiced Mastery
Crowd-control execution against memorised enemy waves in a classic belt-scroller.
Prototype 2 leans Execution (Practiced Mastery); Streets of Rage 3 leans Execution (Practiced Mastery).
Streets of Rage 3 leans a little harder on execution, though the gap is small.
Prototype 2
Power-swapping combat and traversal demand decent dexterity
Streets of Rage 3
Perfect inputs trivialise crowd control, combos and weapon timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Prototype 2
Blackwatch and infected never adapt
Streets of Rage 3
Co-op partner aside, enemies follow scripted aggression patterns
Prototype 2 leans a little harder on variance, though the gap is small.
Prototype 2
Sandbox encounters carry slight randomness
Streets of Rage 3
Enemy waves are fixed once a route is learned
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Prototype 2
Mutation upgrades and target-hunting routes reward planning
Streets of Rage 3
Routing enemy spawns and special-meter management is the depth layer
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.