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
The black-sheep sequel whose passive enemies and dominant guns sand the series' skill ceiling way down.

Execution · Practiced Mastery
Combo execution through scripted Outworld brawls, alone or in co-op.
Devil May Cry 2 leans Execution (Practiced Mastery); Mortal Kombat: Shaolin Monks 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.
Devil May Cry 2
Infamously easy; guns trivialize most encounters
Mortal Kombat: Shaolin Monks
Combo juggling and launcher timing carry combat
Mortal Kombat: Shaolin Monks leans a little harder on reads, though the gap is small.
Devil May Cry 2
Passive enemy AI never pressures, let alone adapts
Mortal Kombat: Shaolin Monks
Bosses telegraph fixed Outworld patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Devil May Cry 2
Flat authored levels hide little
Mortal Kombat: Shaolin Monks
Encounters repeat identically once learned
Devil May Cry 2 leans a little harder on optimization, though the gap is small.
Devil May Cry 2
Amulet builds and boss patterns fall fast
Mortal Kombat: Shaolin Monks
Move unlocks, co-op synergies and boss patterns 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.