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.

Optimization · Practiced Mastery
A minimalist action adventure about toppling sixteen colossal puzzle-bosses.

Execution · Practiced Mastery
The notoriously demanding side-scrolling Zelda built on tight sword duels and RPG levelling.
Shadow of the Colossus leans Optimization (Practiced Mastery); Zelda II: The Adventure of Link leans Execution (Practiced Mastery).
Zelda II: The Adventure of Link leans a little harder on execution, though the gap is small.
Shadow of the Colossus
Climbing, grip management, and sword timing on moving giants.
Zelda II: The Adventure of Link
Precise sword spacing, shield stabs, brutal platforming
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Shadow of the Colossus
Colossi follow fixed behavior patterns.
Zelda II: The Adventure of Link
Ironknuckles feint but follow fixed logic
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Shadow of the Colossus
Encounters play out nearly identically each attempt.
Zelda II: The Adventure of Link
Layouts fixed, little hidden randomness
Shadow of the Colossus leans a little harder on optimization, though the gap is small.
Shadow of the Colossus
Each colossus is a solvable climbing puzzle.
Zelda II: The Adventure of Link
XP routing, spell use, palace order planning
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.