head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
A gentle platformer where copying enemy abilities and light timing carries progress.

Execution · Practiced Mastery
A cinematic puzzle-platformer emphasizing atmosphere and light puzzle-solving.
Kirby: Nightmare in Dream Land leans Execution (Practiced Mastery); Planet of Lana II: Children of the Leaf leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby: Nightmare in Dream Land
light platforming and timing precision
Planet of Lana II: Children of the Leaf
platforming timing and puzzle-action sequences
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby: Nightmare in Dream Land
scripted enemies, no adaptation
Planet of Lana II: Children of the Leaf
no adaptive opponent, scripted threats
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby: Nightmare in Dream Land
minimal randomness
Planet of Lana II: Children of the Leaf
minimal randomness, deterministic puzzles
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby: Nightmare in Dream Land
ability combos lightly solvable
Planet of Lana II: Children of the Leaf
minor puzzle-solving sequencing
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.
full breakdown
Kirby: Nightmare in Dream Land →
full breakdown
Planet of Lana II: Children of the Leaf →