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
An auto-runner spinoff of Sonic testing quick reflexes and route memorization.

Execution · Practiced Mastery
The infamous, glitch-ridden 2006 Sonic reboot where the physics are the real boss.
Sonic Runners leans Execution (Pure Mechanics); Sonic the Hedgehog (2006) 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.
Sonic Runners
timing jumps/dashes at speed rewards precise inputs
Sonic the Hedgehog (2006)
Fighting unreliable physics demands constant correction
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Sonic Runners
no opponent to out-predict, pure solo runner
Sonic the Hedgehog (2006)
No adaptive opposition
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Sonic Runners
occasional random item drops and obstacle layout
Sonic the Hedgehog (2006)
Bugs make outcomes partly unpredictable
Sonic the Hedgehog (2006) leans a little harder on optimization, though the gap is small.
Sonic Runners
route/lane and upgrade optimization for score
Sonic the Hedgehog (2006)
Learning which routes the jank permits
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.