head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
Time-looping sequel that doubles down on the swarm-shooting and weapon-farming loop.

Optimization · Practiced Mastery
The 1986 original that defined exploration-driven, secret-riddled platforming.
Earth Defense Force 6 leans Optimization (Practiced Mastery); Metroid leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Earth Defense Force 6
Swarm kiting and aim across four classes
Metroid
stiff NES jumps and tough enemy contact
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Earth Defense Force 6
Enemies remain scripted swarm AI
Metroid
creatures follow fixed movement
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Earth Defense Force 6
RNG weapon drops and armor farming
Metroid
unmarked secrets and bombable blocks hide the map
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Earth Defense Force 6
Loadout theory and mission-specific strategies
Metroid
route and item knowledge transforms the game
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.