head to head
Borderlands 2 asks more than A Building Full of Cats, and the gap is optimization.

Variance · Systems & Chaos
A hidden-object hunt that tests visual search until every cat location is known.

Optimization · Systems & Chaos
Loot-shooter RPG built on gear chasing.
A Building Full of Cats leans Variance (Systems & Chaos); Borderlands 2 leans Optimization (Systems & Chaos).
Borderlands 2 leans clearly harder on execution.
A Building Full of Cats
Clicking spotted cats takes no dexterity
Borderlands 2
Aim matters but generous hit feel
Borderlands 2 leans a little harder on reads, though the gap is small.
A Building Full of Cats
No opponent of any kind
Borderlands 2
Enemies are scripted loot fodder
Borderlands 2 leans a little harder on variance, though the gap is small.
A Building Full of Cats
Hidden cat locations are the entire challenge until found
Borderlands 2
Procedurally generated weapon drops vary
Borderlands 2 leans clearly harder on optimization.
A Building Full of Cats
Systematic screen-scanning is the only strategy layer
Borderlands 2
Skill trees and gear math heavily solved
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.