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 · Light / Casual
A pack-in 3D platformer celebrating PlayStation history.

Execution · Practiced Mastery
A family-tuned brawler-platformer testing modest timing and simple puzzle solutions.
Astro's Playroom leans Execution (Light / Casual); Knack II leans Execution (Practiced Mastery).
Knack II leans a little harder on execution, though the gap is small.
Astro's Playroom
Very forgiving platforming
Knack II
Light combo timing and platforming pitched at families
Astro's Playroom leans a little harder on reads, though the gap is small.
Astro's Playroom
Scripted enemies
Knack II
Enemies run simple scripts without adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Astro's Playroom
Static levels
Knack II
Levels are fixed with nothing hidden beyond first sight
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Astro's Playroom
Collectible completion
Knack II
Size-swap puzzles have single obvious solutions
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.