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.

Optimization · Practiced Mastery
The N64 collectathon that buries five playable Kongs in collectibles.

Optimization · Practiced Mastery
A puzzle-leaning platformer testing perspective-flip problem solving more than reflexes.
Donkey Kong 64 leans Optimization (Practiced Mastery); Super Paper Mario leans Optimization (Practiced Mastery).
Donkey Kong 64 leans a little harder on execution, though the gap is small.
Donkey Kong 64
Moderate platforming and minigame dexterity
Super Paper Mario
Light platforming demands, well below mainline Mario
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong 64
Scripted bosses and enemies
Super Paper Mario
Enemies follow simple fixed patterns, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong 64
Little randomness; secrets known once found
Super Paper Mario
Dimension-flip secrets are scripted-but-unknown until found
Donkey Kong 64 leans a little harder on optimization, though the gap is small.
Donkey Kong 64
Routing five Kongs through collectible checklists
Super Paper Mario
Solving levels via the 2D/3D flip mechanic is the core test
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.