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
An open-city sequel deepening freeflow combat and predator gadget play.

Execution · Practiced Mastery
The black-sheep sequel whose passive enemies and dominant guns sand the series' skill ceiling way down.
Batman: Arkham City leans Execution (Practiced Mastery); Devil May Cry 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: Arkham City
Combo chains and counters need timing.
Devil May Cry 2
Infamously easy; guns trivialize most encounters
Batman: Arkham City leans a little harder on reads, though the gap is small.
Batman: Arkham City
Enemies scripted, not adaptive.
Devil May Cry 2
Passive enemy AI never pressures, let alone adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: Arkham City
Fixed encounters and challenges.
Devil May Cry 2
Flat authored levels hide little
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: Arkham City
Gadget combos and challenge maps learnable.
Devil May Cry 2
Amulet builds and boss patterns fall fast
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.