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
High-speed bike control and combat timing over memorised courses.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Road Rash 3 leans Execution (Pure Mechanics); Super Mario Odyssey leans Execution (Pure Mechanics).
Super Mario Odyssey leans a little harder on execution, though the gap is small.
Road Rash 3
High-speed steering plus melee timing against rival riders
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
Road Rash 3 leans a little harder on reads, though the gap is small.
Road Rash 3
AI riders follow patterns, not adaptive minds
Super Mario Odyssey
No adaptive opponents whatsoever.
Road Rash 3 leans a little harder on variance, though the gap is small.
Road Rash 3
Traffic and rival behaviour inject mild chaos
Super Mario Odyssey
Almost no randomness in level design.
Super Mario Odyssey leans a little harder on optimization, though the gap is small.
Road Rash 3
Bike upgrades and track knowledge compound across the career
Super Mario Odyssey
Moon routes and movement tech learnable.
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.