head to head
Neither is simply harder - they are hard in different places. Pokemon FireRed Version demands more variance; Portal demands more execution.

Optimization · Pure Optimization
The Game Boy Advance remake of the original Kanto journey with modern mechanics and the Sevii Islands.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Pokemon FireRed Version leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Portal leans clearly harder on execution.
Pokemon FireRed Version
Turn-based menus only
Portal
Portal placement timing modest.
Pokemon FireRed Version leans clearly harder on reads.
Pokemon FireRed Version
AI trainers follow fixed logic; PvP optional
Portal
No adversary modeling player.
Pokemon FireRed Version leans clearly harder on variance.
Pokemon FireRed Version
Wild encounters and catch rolls bring luck
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.
Pokemon FireRed Version
Team composition and matchup knowledge decide everything
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.