head to head
Rebel Cops asks more than Portal 2, and the gap is variance.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.

Optimization · Pure Optimization
A turn-based tactics game testing positioning and resource planning under hit-chance RNG.
Portal 2 leans Optimization (Pure Optimization); Rebel Cops leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
Portal 2
Portal placement requires some precision but timing is lenient.
Rebel Cops
Aiming is point-based, not twitch reflex
Rebel Cops leans a little harder on reads, though the gap is small.
Portal 2
No opponent; puzzles are static.
Rebel Cops
Enemy AI is scripted, not adaptive modelling
Rebel Cops leans clearly harder on variance.
Portal 2
Puzzles are deterministic with no randomness.
Rebel Cops
Hit chances and detection add real randomness
Portal 2 leans a little harder on optimization, though the gap is small.
Portal 2
Solving the puzzle's logic IS the entire game.
Rebel Cops
Positioning, resource scarcity and turn planning decide missions
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.