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 · Pure Mechanics
The SNES racer that made survival at extreme speed the entire test.

Execution · Pure Mechanics
An arcade bike racer testing cornering execution across memorised circuits.
F-Zero leans Execution (Pure Mechanics); Moto Racer 2 leans Execution (Pure Mechanics).
F-Zero leans a little harder on execution, though the gap is small.
F-Zero
Tight cornering at speed with punishing walls
Moto Racer 2
Cornering at speed across road and motocross demands clean inputs
F-Zero leans a little harder on reads, though the gap is small.
F-Zero
AI racers don't adapt
Moto Racer 2
AI riders run fixed lines
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero
Fixed tracks
Moto Racer 2
Courses are static and learnable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero
Boost timing and racing lines converge
Moto Racer 2
Track memorisation and bike choice settle close races
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.