head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Pure Mechanics
Namco's lavish Galaga sequel adds dimension warps and ship-stacking to classic formation shooting.

Execution · Practiced Mastery
Neon top-down massacre where each floor is a one-mistake execution puzzle.
Galaga '88 leans Execution (Pure Mechanics); Hotline Miami leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Galaga '88
Precise dodging and shooting through dense dive patterns.
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.
Galaga '88
Aliens attack on choreographed scripts.
Hotline Miami
Enemies are dumb scripted reactors
Galaga '88 leans a little harder on variance, though the gap is small.
Galaga '88
Dive timing and dimension-warp triggers vary.
Hotline Miami
Slight enemy behavior wobble between restarts
Hotline Miami leans a little harder on optimization, though the gap is small.
Galaga '88
Triple-ship management and warp routing reward planning.
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.