head to head
Neither is simply harder - they are hard in different places. Persona Q2: New Cinema Labyrinth demands more variance; Portal demands more execution.

Optimization · Pure Optimization
A dungeon-crawling RPG crossover mapping Persona characters through labyrinthine cinemas.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Persona Q2: New Cinema Labyrinth leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Portal leans clearly harder on execution.
Persona Q2: New Cinema Labyrinth
no physical skill, menu-driven combat
Portal
Portal placement timing modest.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Persona Q2: New Cinema Labyrinth
scripted enemy AI, not adaptive
Portal
No adversary modeling player.
Persona Q2: New Cinema Labyrinth leans clearly harder on variance.
Persona Q2: New Cinema Labyrinth
drop rates and encounter randomness
Portal
Deterministic chambers; no randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Persona Q2: New Cinema Labyrinth
party building and dungeon-mapping mastery
Portal
Pure puzzle-solving optimization.
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.