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 gentle platformer where copying enemy abilities and light timing carries progress.
Astro's Playroom leans Execution (Light / Casual); Kirby: Nightmare in Dream Land leans Execution (Practiced Mastery).
Kirby: Nightmare in Dream Land leans a little harder on execution, though the gap is small.
Astro's Playroom
Very forgiving platforming
Kirby: Nightmare in Dream Land
light platforming and timing precision
Astro's Playroom leans a little harder on reads, though the gap is small.
Astro's Playroom
Scripted enemies
Kirby: Nightmare in Dream Land
scripted enemies, no 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
Kirby: Nightmare in Dream Land
minimal randomness
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
Kirby: Nightmare in Dream Land
ability combos lightly solvable
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.