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
A danmaku arcade shmup where surviving cascading bullet curtains and optimising hyper-cancel chaining pushes execution to its ceiling.

Execution · Pure Mechanics
A movement-shooter demanding near-perfect execution chains to maximise style rank against scripted but relentless enemies.
DoDonPachi DaiFukkatsu leans Execution (Practiced Mastery); ULTRAKILL leans Execution (Pure Mechanics).
ULTRAKILL leans a little harder on execution, though the gap is small.
DoDonPachi DaiFukkatsu
Surviving dense bullet curtains at high speed demands peak precision
ULTRAKILL
Style-ranked combat demands flawless movement, parries, and weapon-swap chains
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
DoDonPachi DaiFukkatsu
Scripted enemy patterns only - no adaptive opponent
ULTRAKILL
All enemies are scripted; no adaptive human opponent exists
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
DoDonPachi DaiFukkatsu
Rank system and some random bullet timings add pressure
ULTRAKILL
Enemy placement is fixed and fully readable after one pass
DoDonPachi DaiFukkatsu leans a little harder on optimization, though the gap is small.
DoDonPachi DaiFukkatsu
Hyper cancels, chaining, and routing for maximum score are fully solvable
ULTRAKILL
Weapon synergies and ranked-route planning form a deep solvable system
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.