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
A tilt-control balance game about rolling precisely through floating mazes.
F-Zero leans Execution (Pure Mechanics); Super Monkey Ball 3D leans Execution (Pure Mechanics).
Super Monkey Ball 3D leans a little harder on execution, though the gap is small.
F-Zero
Tight cornering at speed with punishing walls
Super Monkey Ball 3D
Precise tilt control under gravity is the entire test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero
AI racers don't adapt
Super Monkey Ball 3D
Solo stages, no opponent to predict
Super Monkey Ball 3D leans a little harder on variance, though the gap is small.
F-Zero
Fixed tracks
Super Monkey Ball 3D
Levels are fixed with little randomness
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
Super Monkey Ball 3D
Optimal lines through mazes reward route learning
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.