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 vertical-scrolling bullet-hell shoot-em-up.

Execution · Pure Mechanics
Rhythm FPS where every shot must land on the metal soundtrack's beat.
Bullet Soul leans Execution (Pure Mechanics); Metal: Hellsinger leans Execution (Pure Mechanics).
Bullet Soul leans a little harder on execution, though the gap is small.
Bullet Soul
dense bullet dodging demands precise reflexes
Metal: Hellsinger
shooting on the beat is the entire skill test
Bullet Soul leans a little harder on reads, though the gap is small.
Bullet Soul
bullet patterns fixed, not adaptive
Metal: Hellsinger
demons follow fixed behavior
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bullet Soul
minimal pattern randomness
Metal: Hellsinger
deterministic arenas
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Bullet Soul
pattern memorization for scoring runs
Metal: Hellsinger
weapon choice and streak management for scores
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.