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 boss-rush action game that is nothing but execution tests against scripted duelists.

Execution · Practiced Mastery
A precision metroidvania about learning fixed boss patterns and tight platforming.
Furi leans Execution (Pure Mechanics); Hollow Knight leans Execution (Practiced Mastery).
Furi leans a little harder on execution, though the gap is small.
Furi
Parry timing, bullet dodging, and duel precision
Hollow Knight
Precise platforming and pogo timing dominate hard content.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Furi
Bosses are scripted patterns, however adversarial they feel
Hollow Knight
Bosses run scripted attack pools; not adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Furi
Fixed boss sequences
Hollow Knight
Negligible; world layout is fixed.
Hollow Knight leans a little harder on optimization, though the gap is small.
Furi
Learning each boss's phases converges to mastery
Hollow Knight
Charm builds and boss routes are fully 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.