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 · Practiced Mastery
Tense, linear Metroid hunted through a station by a clone of yourself.

Execution · Practiced Mastery
Open-world reboot of Mirror's Edge centered on free-running across the city of Glass.
Metroid Fusion leans Execution (Practiced Mastery); Mirror's Edge Catalyst leans Execution (Practiced Mastery).
Mirror's Edge Catalyst leans a little harder on execution, though the gap is small.
Metroid Fusion
demanding bosses for a 2D Metroid
Mirror's Edge Catalyst
Flow-state parkour with timing-based combat
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metroid Fusion
SA-X stalking runs on fixed scripts
Mirror's Edge Catalyst
Enemies are scripted obstacles
Metroid Fusion leans a little harder on variance, though the gap is small.
Metroid Fusion
first-encounter dread fades once mapped
Mirror's Edge Catalyst
Open world is static once explored
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Metroid Fusion
guided structure still rewards route and pattern knowledge
Mirror's Edge Catalyst
Time trials reward optimal route discovery
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.