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 run-and-gun boss rush about dodging scripted patterns with tight inputs.

Execution · Practiced Mastery
A twin-stick arcade shooter where flawless movement through layered projectile patterns and human-rescue routing is the skill ceiling.
Cuphead leans Execution (Pure Mechanics); Nex Machina leans Execution (Practiced Mastery).
Cuphead leans a little harder on execution, though the gap is small.
Cuphead
Tight dodging and parry timing decide every boss.
Nex Machina
Rapid dodging through layered lasers and bullets is the entire test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Cuphead
Bosses cycle scripted phases; no adaptation to player.
Nex Machina
All enemy behaviour is scripted arcade-style
Nex Machina leans a little harder on variance, though the gap is small.
Cuphead
Minor attack-order shuffling between phases.
Nex Machina
Enemy arrangement has minor randomisation between waves
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Cuphead
Loadouts and boss phase order are fully learnable.
Nex Machina
Human rescue routing and weapon pick sequencing reward study
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.