head to head
Neither is simply harder - they are hard in different places. Aragami 2 demands more variance; Portal 2 demands more optimization.

Optimization · Pure Optimization
Routing stealth kills through static guard circuits while managing a learnable skill and stamina economy.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Aragami 2 leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Aragami 2 leans a little harder on execution, though the gap is small.
Aragami 2
Stamina-gated combat and ledge grabs add modest execution demands
Portal 2
Portal placement requires some precision but timing is lenient.
Aragami 2 leans a little harder on reads, though the gap is small.
Aragami 2
Enemy AI patrols on fixed schedules without adapting to tactic history
Portal 2
No opponent; puzzles are static.
Aragami 2 leans clearly harder on variance.
Aragami 2
Level layouts are static; repeated runs compound knowledge cleanly
Portal 2
Puzzles are deterministic with no randomness.
Portal 2 leans clearly harder on optimization.
Aragami 2
Skill tree investment and patrol routing are the lead system
Portal 2
Solving the puzzle's logic IS the entire game.
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.