Building comparison
head to head
Journey to SiliusvsMetal Slug
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.
Journey to Silius
Execution · Pure Mechanics
Memorising punishing fixed stages and executing precise run-and-gun inputs.
Metal Slug
Execution · Practiced Mastery
Twitch dodging and shooting layered over memorised arcade stage routes.
Journey to Silius leans Execution (Pure Mechanics); Metal Slug leans Execution (Practiced Mastery).
Journey to SiliusMetal 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.
Journey to Silius
Precise jumps and dodges under NES-hard pressure define it
Metal Slug
Dodging dense bullet patterns and precise shots carry every credit
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Journey to Silius
Every enemy and boss is rigidly scripted
Metal Slug
Enemies follow fixed arcade scripts, never adapt
Variance0 vs 1
Metal Slug leans a little harder on variance, though the gap is small.
Journey to Silius
Identical layouts and spawns every attempt
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.
Journey to Silius
Weapon-energy budgeting and pattern memorisation make clears possible
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.