head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Pure Mechanics
A pure reflex runner of split-second jumps inside a rotating particle accelerator.

Execution · Pure Mechanics
A physics comedy about an octopus in a suit flailing through fatherhood without blowing his cover.
Boson X leans Execution (Pure Mechanics); Octodad: Dadliest Catch leans Execution (Pure Mechanics).
Boson X leans a little harder on execution, though the gap is small.
Boson X
Split-second jumps in a rotating tunnel are the entire game
Octodad: Dadliest Catch
Deliberately clumsy limb controls are the whole challenge
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Boson X
No opponent - just oncoming geometry
Octodad: Dadliest Catch
No opponents, just suspicion meters
Boson X leans a little harder on variance, though the gap is small.
Boson X
Platform sequences are randomized but pattern-bounded
Octodad: Dadliest Catch
Physics wobble adds slapstick unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Boson X
Blue-platform risk choices have a thin strategic layer
Octodad: Dadliest Catch
Simple objectives, little system depth
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.