head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Practiced Mastery
NES platformer that codified boss-weakness ordering and tight jump-and-shoot play.

Execution · Pure Mechanics
A more combat-forward sequel with sharper platforming demands.
Mega Man 2 leans Execution (Practiced Mastery); Ori and the Will of the Wisps leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Mega Man 2
precise jumps and boss dodges under pressure
Ori and the Will of the Wisps
Combat plus escape chases demand tight inputs
Ori and the Will of the Wisps leans a little harder on reads, though the gap is small.
Mega Man 2
robot masters follow strict patterns
Ori and the Will of the Wisps
Scripted bosses, no human opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Mega Man 2
deterministic once stage layouts known
Ori and the Will of the Wisps
Deterministic encounters
Mega Man 2 leans a little harder on optimization, though the gap is small.
Mega Man 2
weapon-weakness ordering is the classic solve
Ori and the Will of the Wisps
Shard loadouts and weapon choice tune playstyle
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.