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 bullet-hell shooter testing precise dodging through scripted bullet patterns.

Execution · Pure Mechanics
A movement-shooter demanding near-perfect execution chains to maximise style rank against scripted but relentless enemies.
Akai Katana leans Execution (Pure Mechanics); ULTRAKILL leans Execution (Pure Mechanics).
ULTRAKILL leans a little harder on execution, though the gap is small.
Akai Katana
Threading through dense bullet curtains demands flawless precise movement
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.
Akai Katana
Enemy bullet patterns are scripted, not an adapting mind
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.
Akai Katana
Patterns are fixed once learned, minimal true randomness
ULTRAKILL
Enemy placement is fixed and fully readable after one pass
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Akai Katana
Scoring systems and route memorisation reward deep optimization
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.