head to head
Like a Dragon: Infinite Wealth asks more than Portal 2, and the gap is variance.

Optimization · Pure Optimization
A turn-based JRPG carried by job, gear, and bond-routing optimization.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Like a Dragon: Infinite Wealth leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
Like a Dragon: Infinite Wealth
Turn-based with positioning, low input demand
Portal 2
Portal placement requires some precision but timing is lenient.
Like a Dragon: Infinite Wealth leans a little harder on reads, though the gap is small.
Like a Dragon: Infinite Wealth
Scripted enemies
Portal 2
No opponent; puzzles are static.
Like a Dragon: Infinite Wealth leans clearly harder on variance.
Like a Dragon: Infinite Wealth
Drop and ability rolls
Portal 2
Puzzles are deterministic with no randomness.
Portal 2 leans a little harder on optimization, though the gap is small.
Like a Dragon: Infinite Wealth
Job, gear, and bond routing rewarded
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.