head to head
Mario + Rabbids Sparks of Hope asks more than Portal 2, and the gap is reads.

Optimization · Pure Optimization
A turn-based tactics game with Mario and Rabbid characters.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Mario + Rabbids Sparks of Hope leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
Mario + Rabbids Sparks of Hope
Menu-driven actions, light aim
Portal 2
Portal placement requires some precision but timing is lenient.
Mario + Rabbids Sparks of Hope leans clearly harder on reads.
Mario + Rabbids Sparks of Hope
Some AI positioning to anticipate
Portal 2
No opponent; puzzles are static.
Mario + Rabbids Sparks of Hope leans clearly harder on variance.
Mario + Rabbids Sparks of Hope
Hit chances and spark draws
Portal 2
Puzzles are deterministic with no randomness.
Portal 2 leans a little harder on optimization, though the gap is small.
Mario + Rabbids Sparks of Hope
Team comp, spark synergy, positioning
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.