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 · Practiced Mastery
Cave's genre-defining bullet hell where survival is execution and score is a memorized chain route.

Execution · Practiced Mastery
A 3D platformer about precise gravity-bending jumps through fixed galaxies.
DoDonPachi leans Execution (Practiced Mastery); Super Mario Galaxy 2 leans Execution (Practiced Mastery).
DoDonPachi leans a little harder on execution, though the gap is small.
DoDonPachi
Threading dense bullet curtains demands pixel-perfect movement
Super Mario Galaxy 2
Precise jumps and gravity navigation define every galaxy
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
DoDonPachi
Fixed scripted patterns, nothing adapts
Super Mario Galaxy 2
Bosses are scripted patterns, not adapting to you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
DoDonPachi
Near-fully deterministic once patterns are learned
Super Mario Galaxy 2
Levels are deterministic, nothing random
DoDonPachi leans a little harder on optimization, though the gap is small.
DoDonPachi
Chain meter routing defines high-level play entirely
Super Mario Galaxy 2
Learning fixed layouts and routes for stars
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.