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 classic side-scrolling brawler focused on tight combat execution.

Execution · Practiced Mastery
A stylish Suda51 action game following an executioner with a cybernetic arm.
Final Fight 3 leans Execution (Pure Mechanics); Killer Is Dead leans Execution (Practiced Mastery).
Final Fight 3 leans a little harder on execution, though the gap is small.
Final Fight 3
beat-em-up combo and dodge execution
Killer Is Dead
Dodge-burst timing drives stylish swordplay
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fight 3
enemies use fixed scripted aggression
Killer Is Dead
Enemies and bosses are scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fight 3
minor enemy spawn randomness
Killer Is Dead
Encounters are fixed
Killer Is Dead leans a little harder on optimization, though the gap is small.
Final Fight 3
character choice and combo-route optimization
Killer Is Dead
Upgrade choices and boss pattern learning
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.