head to head
Call of Duty: Black Ops 4 asks more than Super Mario Odyssey, and the gap is reads.

Execution · Pure Mechanics
A fast military shooter where twitch aim against human opponents defines success.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Call of Duty: Black Ops 4 leans Execution (Pure Mechanics); Super Mario Odyssey leans Execution (Pure Mechanics).
Call of Duty: Black Ops 4 leans a little harder on execution, though the gap is small.
Call of Duty: Black Ops 4
aim and reflexes decide most fights
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
Call of Duty: Black Ops 4 leans clearly harder on reads.
Call of Duty: Black Ops 4
predicting human opponents' positioning
Super Mario Odyssey
No adaptive opponents whatsoever.
Call of Duty: Black Ops 4 leans clearly harder on variance.
Call of Duty: Black Ops 4
battle royale loot is heavily random
Super Mario Odyssey
Almost no randomness in level design.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Black Ops 4
loadouts and rotations are solvable
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.