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.

Optimization · Pure Optimization
The genre-defining metroidvania with deep RPG systems.

Optimization · Practiced Mastery
A BioWare RPG testing build choices and style counters over reflexes.
Castlevania: Symphony of the Night leans Optimization (Pure Optimization); Jade Empire: Special Edition 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.
Castlevania: Symphony of the Night
Forgiving action combat
Jade Empire: Special Edition
Martial-arts combat is real-time but forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania: Symphony of the Night
Scripted bosses
Jade Empire: Special Edition
Enemies cycle fixed styles without modelling you
Castlevania: Symphony of the Night leans a little harder on variance, though the gap is small.
Castlevania: Symphony of the Night
Item drops and rare gear
Jade Empire: Special Edition
Story branches are choices, not hidden randomness
Castlevania: Symphony of the Night leans a little harder on optimization, though the gap is small.
Castlevania: Symphony of the Night
Build crafting and sequence breaks
Jade Empire: Special Edition
Style counters, stat builds and dialogue paths are solvable
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.