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
Memorising spawn patterns then executing them flawlessly under one-hit-death rules.
DoDonPachi leans Execution (Practiced Mastery); Super Contra 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 Contra
One-hit deaths demand precise dodging and constant accurate fire
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 Contra
Alien waves follow fixed spawn scripts
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 Contra
Nothing random once spawn patterns are memorised
DoDonPachi leans a little harder on optimization, though the gap is small.
DoDonPachi
Chain meter routing defines high-level play entirely
Super Contra
Memorising spawns and weapon routes is half the run
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.