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 · Pure Mechanics
A vertical bullet-hell shooter testing precise dodging and scoring chains.

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.
DonPachi leans Execution (Pure Mechanics); DOOM (2016) leans Execution (Pure Mechanics).
DonPachi leans a little harder on execution, though the gap is small.
DonPachi
Precise dodging through dense bullet patterns defines play
DOOM (2016)
Aim, movement, glory-kill timing all peak.
DOOM (2016) leans a little harder on reads, though the gap is small.
DonPachi
Solo - enemies follow fixed bullet patterns
DOOM (2016)
Demons scripted attack patterns.
DonPachi leans a little harder on variance, though the gap is small.
DonPachi
Patterns fixed once memorized, minimal randomness
DOOM (2016)
Minimal encounter randomness.
DonPachi leans a little harder on optimization, though the gap is small.
DonPachi
Chaining and weapon choice maximize score
DOOM (2016)
Rune and weapon mod picks meaningful.
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.