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

Execution · Pure Mechanics
A physics comedy about an octopus in a suit flailing through fatherhood without blowing his cover.

Execution · Pure Mechanics
A rail shooter testing aim and reflexes through scripted space battles.
Octodad: Dadliest Catch leans Execution (Pure Mechanics); Star Wars Arcade leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Octodad: Dadliest Catch
Deliberately clumsy limb controls are the whole challenge
Star Wars Arcade
Aiming and dodging in rail combat decides survival
Star Wars Arcade leans a little harder on reads, though the gap is small.
Octodad: Dadliest Catch
No opponents, just suspicion meters
Star Wars Arcade
Enemy ships follow scripted attack patterns
Star Wars Arcade leans a little harder on variance, though the gap is small.
Octodad: Dadliest Catch
Physics wobble adds slapstick unpredictability
Star Wars Arcade
Minor variation in enemy approaches
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Octodad: Dadliest Catch
Simple objectives, little system depth
Star Wars Arcade
Memorizing waves and conserving shields helps
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.