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

Optimization · Practiced Mastery
Action RPG prequel to FFVII whose combat spins a slot machine for buffs.

Optimization · Practiced Mastery
Building card decks that out-value scripted bosses in real-time battles.
Crisis Core: Final Fantasy VII leans Optimization (Practiced Mastery); Kingdom Hearts Re:Chain of Memories leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Crisis Core: Final Fantasy VII
real-time dodging and attack timing
Kingdom Hearts Re:Chain of Memories
Real-time card play needs timing but not twitch mastery
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Crisis Core: Final Fantasy VII
no adaptive opponent
Kingdom Hearts Re:Chain of Memories
Bosses break cards with scripted, learnable values
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Crisis Core: Final Fantasy VII
DMW slot reels randomize limit breaks and levels
Kingdom Hearts Re:Chain of Memories
Card draws within your deck vary each fight
Kingdom Hearts Re:Chain of Memories leans a little harder on optimization, though the gap is small.
Crisis Core: Final Fantasy VII
materia fusion is a deep solvable system
Kingdom Hearts Re:Chain of Memories
Deck construction and sleight knowledge dominate outcomes
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.