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

Execution · Practiced Mastery
Car control under pursuit pressure plus memorising city routes mission by mission.

Execution · Practiced Mastery
An endless runner starring Sonic and friends.
Driver 2: Back on the Streets leans Execution (Practiced Mastery); Sonic Runners Adventure 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.
Driver 2: Back on the Streets
Wrestling the car physics through chase missions is the test
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.
Driver 2: Back on the Streets
Police AI follows fixed pursuit logic, not adaptation
Sonic Runners Adventure
no adaptive opponent, solo endless runner
Sonic Runners Adventure leans a little harder on variance, though the gap is small.
Driver 2: Back on the Streets
Traffic placement adds run-to-run noise in chases
Sonic Runners Adventure
obstacle and item layouts randomized
Driver 2: Back on the Streets leans a little harder on optimization, though the gap is small.
Driver 2: Back on the Streets
Learning city layouts and mission routes carries completion
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.