head to head
Ketsui: Kizuna Jigoku Tachi asks more than Hotline Miami, and the gap is execution.

Execution · Practiced Mastery
Neon top-down massacre where each floor is a one-mistake execution puzzle.

Execution · Pure Mechanics
Cave's hardest bullet hell, built on suicidal close-range scoring and merciless execution demands.
Hotline Miami leans Execution (Practiced Mastery); Ketsui: Kizuna Jigoku Tachi leans Execution (Pure Mechanics).
Ketsui: Kizuna Jigoku Tachi leans clearly harder on execution.
Hotline Miami
One-hit-death rooms demand flawless fast inputs
Ketsui: Kizuna Jigoku Tachi
Point-blank chip harvesting in bullet storms, brutal physical ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Hotline Miami
Enemies are dumb scripted reactors
Ketsui: Kizuna Jigoku Tachi
Enemies follow fixed scripts
Hotline Miami leans a little harder on variance, though the gap is small.
Hotline Miami
Slight enemy behavior wobble between restarts
Ketsui: Kizuna Jigoku Tachi
Deterministic patterns, trivial randomness
Ketsui: Kizuna Jigoku Tachi leans a little harder on optimization, though the gap is small.
Hotline Miami
Route planning and mask choice per floor
Ketsui: Kizuna Jigoku Tachi
Multiplier chip routing is a solved-route discipline
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.