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.

Optimization · Pure Optimization
PS1 JRPG whose turn-based combat hinges on timed attack combos.

Optimization · Pure Optimization
A scripted RPG where pattern-learning and pacifist routing carry you.
The Legend of Dragoon leans Optimization (Pure Optimization); Undertale leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
The Legend of Dragoon
Addition combos demand precise button timing every attack
Undertale
Bullet-hell dodging in scripted patterns
Undertale leans a little harder on reads, though the gap is small.
The Legend of Dragoon
Enemies follow fixed scripts
Undertale
NPCs follow fixed dialogue trees, not adaptive
The Legend of Dragoon leans a little harder on variance, though the gap is small.
The Legend of Dragoon
Standard encounter unknowns
Undertale
Minimal randomness in encounters
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Legend of Dragoon
Dragoon management, additions, and item strategy
Undertale
Learning fixed boss patterns and mercy routes wins
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.