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 · Practiced Mastery
A neo-noir one-hit-kill action platformer about planning and replaying perfect assassinations.
DonPachi leans Execution (Pure Mechanics); Katana ZERO leans Execution (Practiced Mastery).
DonPachi leans a little harder on execution, though the gap is small.
DonPachi
Precise dodging through dense bullet patterns defines play
Katana ZERO
One-hit-death slashing and deflects demand precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
DonPachi
Solo - enemies follow fixed bullet patterns
Katana ZERO
Enemies follow fixed placements and behaviours
DonPachi leans a little harder on variance, though the gap is small.
DonPachi
Patterns fixed once memorized, minimal randomness
Katana ZERO
Rooms are identical on every attempt
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
DonPachi
Chaining and weapon choice maximize score
Katana ZERO
Planning the perfect room-clear sequence
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.