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

Execution · Pure Mechanics
Drift execution and learned racing lines through destructible city tracks.

Execution · Practiced Mastery
A modern beat-em-up where precise combo execution and enemy-pattern mastery are the skill ceiling.
Ridge Racer Unbounded leans Execution (Pure Mechanics); Streets of Rage 4 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Ridge Racer Unbounded
Drift control and boost timing decide every race
Streets of Rage 4
Precise combo strings, parry timing, and star-move usage are decisive
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Ridge Racer Unbounded
Online rivals allow mild positional prediction
Streets of Rage 4
Enemies use scripted attack patterns; no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Ridge Racer Unbounded
Destruction chaos adds modest track noise
Streets of Rage 4
Enemy arrangement is largely fixed; minimal RNG
Streets of Rage 4 leans a little harder on optimization, though the gap is small.
Ridge Racer Unbounded
Learning racing lines and shortcut routes rewards study
Streets of Rage 4
Character selection, route sequencing, and score management reward study
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.