head to head
Neither is simply harder - they are hard in different places. Disney's DuckTales: The Quest for Gold demands more variance; Portal 2 demands more optimization.

Optimization · Pure Optimization
A money-making strategy game about routing investments and treasure hunts efficiently.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Disney's DuckTales: The Quest for Gold leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Disney's DuckTales: The Quest for Gold leans a little harder on execution, though the gap is small.
Disney's DuckTales: The Quest for Gold
Flight minigame timing matters but is light
Portal 2
Portal placement requires some precision but timing is lenient.
Disney's DuckTales: The Quest for Gold leans a little harder on reads, though the gap is small.
Disney's DuckTales: The Quest for Gold
No adaptive opponent, AI rivals are scripted
Portal 2
No opponent; puzzles are static.
Disney's DuckTales: The Quest for Gold leans clearly harder on variance.
Disney's DuckTales: The Quest for Gold
Treasure locations and events add randomness
Portal 2
Puzzles are deterministic with no randomness.
Portal 2 leans clearly harder on optimization.
Disney's DuckTales: The Quest for Gold
Managing cash, investments and route is the core loop
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.