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
Treasure's Mega Drive boss-rush gauntlet demanding flawless execution against giant setpieces.

Execution · Practiced Mastery
Neon top-down massacre where each floor is a one-mistake execution puzzle.
Alien Soldier leans Execution (Pure Mechanics); Hotline Miami leans Execution (Practiced Mastery).
Alien Soldier leans a little harder on execution, though the gap is small.
Alien Soldier
Frame-tight dodges across thirty-plus bosses
Hotline Miami
One-hit-death rooms demand flawless fast inputs
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Soldier
Bosses fully scripted
Hotline Miami
Enemies are dumb scripted reactors
Hotline Miami leans a little harder on variance, though the gap is small.
Alien Soldier
Nothing hidden after one loop
Hotline Miami
Slight enemy behavior wobble between restarts
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Soldier
Weapon loadout and moveset mastery solvable
Hotline Miami
Route planning and mask choice per floor
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.