head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Practiced Mastery
Chaining mid-air kills to climb while an upgrade economy does half the lifting.

Execution · Practiced Mastery
Tense, linear Metroid hunted through a station by a clone of yourself.
Knightmare Tower leans Execution (Practiced Mastery); Metroid Fusion leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Knightmare Tower
Mid-air slash chaining keeps the launch alive - pure reflexes
Metroid Fusion
demanding bosses for a 2D Metroid
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Knightmare Tower
Monsters spawn without any adaptive intent
Metroid Fusion
SA-X stalking runs on fixed scripts
Knightmare Tower leans a little harder on variance, though the gap is small.
Knightmare Tower
Monster spawn patterns shuffle each ascent
Metroid Fusion
first-encounter dread fades once mapped
Metroid Fusion leans a little harder on optimization, though the gap is small.
Knightmare Tower
Upgrade purchase order largely determines how high you climb
Metroid Fusion
guided structure still rewards route and pattern knowledge
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.