head to head
Call of Duty: Modern Warfare 3 asks more than Super Mario Odyssey, and the gap is reads.

Execution · Pure Mechanics
A fast-paced military shooter where twitch aim against other players is the core test.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Call of Duty: Modern Warfare 3 leans Execution (Pure Mechanics); Super Mario Odyssey leans Execution (Pure Mechanics).
Call of Duty: Modern Warfare 3 leans a little harder on execution, though the gap is small.
Call of Duty: Modern Warfare 3
aim and reflexes decide most engagements
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
Call of Duty: Modern Warfare 3 leans clearly harder on reads.
Call of Duty: Modern Warfare 3
predicting human opponent positioning and habits
Super Mario Odyssey
No adaptive opponents whatsoever.
Call of Duty: Modern Warfare 3 leans a little harder on variance, though the gap is small.
Call of Duty: Modern Warfare 3
spawn placement and loadout drops vary
Super Mario Odyssey
Almost no randomness in level design.
Super Mario Odyssey leans a little harder on optimization, though the gap is small.
Call of Duty: Modern Warfare 3
loadout tuning and map knowledge 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.