head to head
Neko Navy asks more than Half-Life 2, and the gap is execution.

Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.

Execution · Pure Mechanics
A bullet-hell shoot-em-up with anime-cat-themed boss fights.
Half-Life 2 leans Execution (Pure Mechanics); Neko Navy leans Execution (Pure Mechanics).
Neko Navy leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
Neko Navy
bullet-hell dodging precision
Half-Life 2 leans a little harder on reads, though the gap is small.
Half-Life 2
Combine AI scripted, non-adaptive.
Neko Navy
fixed boss patterns, not adaptive
Neko Navy leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
Neko Navy
minor randomness in bullet patterns
Neko Navy leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Neko Navy
memorizing boss attack patterns
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.