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
The original top-down crime sandbox where you rack up points causing mayhem across three cities.

Execution · Practiced Mastery
An endless runner starring Sonic and friends.
Grand Theft Auto leans Execution (Practiced Mastery); Sonic Runners Adventure leans Execution (Practiced Mastery).
Sonic Runners Adventure leans a little harder on execution, though the gap is small.
Grand Theft Auto
Twitchy top-down driving and shooting under police pressure
Sonic Runners Adventure
precise timing jumps and dashes at speed
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto
Cops follow simple scripts; nothing adapts
Sonic Runners Adventure
no adaptive opponent, solo endless runner
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto
Chaotic traffic and wanted-level escalation surprise players
Sonic Runners Adventure
obstacle and item layouts randomized
Grand Theft Auto leans a little harder on optimization, though the gap is small.
Grand Theft Auto
Score targets reward learning missions and city layouts
Sonic Runners Adventure
character and item upgrade optimization
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.