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
A more combat-forward sequel with sharper platforming demands.

Execution · Practiced Mastery
A test of 3D movement control with a deep routing layer underneath.
Ori and the Will of the Wisps leans Execution (Pure Mechanics); Super Mario 64 leans Execution (Practiced Mastery).
Ori and the Will of the Wisps leans a little harder on execution, though the gap is small.
Ori and the Will of the Wisps
Combat plus escape chases demand tight inputs
Super Mario 64
Perfect analog inputs trivialise precise jumps, dives and wall-kicks
Ori and the Will of the Wisps leans a little harder on reads, though the gap is small.
Ori and the Will of the Wisps
Scripted bosses, no human opponent
Super Mario 64
Solo platformer - no adaptive opponent anywhere
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Ori and the Will of the Wisps
Deterministic encounters
Super Mario 64
Star locations and level layouts are fixed once seen
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Ori and the Will of the Wisps
Shard loadouts and weapon choice tune playstyle
Super Mario 64
Star routing and movement tech form a deep solvable layer
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.