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 · Practiced Mastery
A grim 2D action metroidvania steeped in religious horror.

Execution · Practiced Mastery
The black-sheep sequel whose passive enemies and dominant guns sand the series' skill ceiling way down.
Blasphemous leans Execution (Practiced Mastery); Devil May Cry 2 leans Execution (Practiced Mastery).
Blasphemous leans a little harder on execution, though the gap is small.
Blasphemous
Punishing 2D combat and platforming
Devil May Cry 2
Infamously easy; guns trivialize most encounters
Blasphemous leans a little harder on reads, though the gap is small.
Blasphemous
Scripted bosses
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.
Blasphemous
Static world
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.
Blasphemous
Rosary bead builds and routing
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.