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 · Pure Mechanics
A PS4-era Killzone where a Shadow Marshal and his OWL drone fight through a divided Helghast city.

Execution · Pure Mechanics
Twitchy miniature racing where screen-edge duels punish imprecise hands.
Killzone Shadow Fall leans Execution (Pure Mechanics); Micro Machines 2: Turbo Tournament leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Killzone Shadow Fall
Standard FPS aim and movement ceiling
Micro Machines 2: Turbo Tournament
Twitchy top-down handling on tabletop tracks is the core test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Killzone Shadow Fall
PvP modes reward predicting human players
Micro Machines 2: Turbo Tournament
Screen-edge duels reward predicting human rivals' lines
Killzone Shadow Fall leans a little harder on variance, though the gap is small.
Killzone Shadow Fall
Some open level routes and spawn noise
Micro Machines 2: Turbo Tournament
Tracks fixed, almost nothing random
Killzone Shadow Fall leans a little harder on optimization, though the gap is small.
Killzone Shadow Fall
OWL drone usage and loadouts optimize cleanly
Micro Machines 2: Turbo Tournament
Memorising shortcuts and racing lines per track
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.