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
Retro arcade racer channeling Top Gear's pure lane-weaving speed.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Horizon Chase Turbo 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.
Horizon Chase Turbo
Weaving through traffic and nailing fuel pickups
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
Horizon Chase Turbo leans a little harder on reads, though the gap is small.
Horizon Chase Turbo
Rival cars run fixed rubber-band logic
Super Mario Odyssey
No adaptive opponents whatsoever.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Horizon Chase Turbo
Minimal randomness in track layouts
Super Mario Odyssey
Almost no randomness in level design.
Super Mario Odyssey leans a little harder on optimization, though the gap is small.
Horizon Chase Turbo
Car stats and lap memorization help
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.