head to head
Neither is simply harder - they are hard in different places. Geki Yaba Runner: Anniversary Edition demands more variance; Super Mario Odyssey demands more optimization.

Execution · Pure Mechanics
A frantic endless runner with retro arcade style.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Geki Yaba Runner: Anniversary Edition 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.
Geki Yaba Runner: Anniversary Edition
fast reflex timing for endless running
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Geki Yaba Runner: Anniversary Edition
no opponent, solo endless runner
Super Mario Odyssey
No adaptive opponents whatsoever.
Geki Yaba Runner: Anniversary Edition leans clearly harder on variance.
Geki Yaba Runner: Anniversary Edition
procedural obstacle generation
Super Mario Odyssey
Almost no randomness in level design.
Super Mario Odyssey leans clearly harder on optimization.
Geki Yaba Runner: Anniversary Edition
minor route/upgrade optimization
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.