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

Execution · Practiced Mastery
Cave's genre-defining bullet hell where survival is execution and score is a memorized chain route.

Execution · Pure Mechanics
Harder, longer-sightline sequel demanding even cleaner execution per floor.
DoDonPachi leans Execution (Practiced Mastery); Hotline Miami 2: Wrong Number 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.
DoDonPachi
Threading dense bullet curtains demands pixel-perfect movement
Hotline Miami 2: Wrong Number
Long sightlines punish any aim or timing slip
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
DoDonPachi
Fixed scripted patterns, nothing adapts
Hotline Miami 2: Wrong Number
No adaptive opposition, just scripted aggression
Hotline Miami 2: Wrong Number leans a little harder on variance, though the gap is small.
DoDonPachi
Near-fully deterministic once patterns are learned
Hotline Miami 2: Wrong Number
Enemy wander adds restart-to-restart noise
DoDonPachi leans a little harder on optimization, though the gap is small.
DoDonPachi
Chain meter routing defines high-level play entirely
Hotline Miami 2: Wrong Number
Stricter routing through bigger open levels
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.