Building comparison
head to head
DOOM (2016)vsMetal Slug
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.
DOOM (2016)
Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.
Metal Slug
Execution · Practiced Mastery
Twitch dodging and shooting layered over memorised arcade stage routes.
DOOM (2016) leans Execution (Pure Mechanics); Metal Slug leans Execution (Practiced Mastery).
DOOM (2016)Metal Slug
Axis by axis
Execution8 vs 8
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
DOOM (2016)
Aim, movement, glory-kill timing all peak.
Metal Slug
Dodging dense bullet patterns and precise shots carry every credit
Reads1 vs 0
DOOM (2016) leans a little harder on reads, though the gap is small.
DOOM (2016)
Demons scripted attack patterns.
Metal Slug
Enemies follow fixed arcade scripts, never adapt
Variance1 vs 1
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
DOOM (2016)
Minimal encounter randomness.
Metal Slug
Spawns are nearly deterministic once a stage is learned
Optimization5 vs 6
Metal Slug leans a little harder on optimization, though the gap is small.
DOOM (2016)
Rune and weapon mod picks meaningful.
Metal Slug
One-credit clears come from memorising routes and spawn 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.