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 · Pure Mechanics
A light-gun shooter testing aim while protecting a moving medic.

Execution · Pure Mechanics
Holding clean lines at speed through traffic on memorisable point-to-point roads.
Rescue Mission leans Execution (Pure Mechanics); The Need for Speed leans Execution (Pure Mechanics).
Rescue Mission leans a little harder on execution, though the gap is small.
Rescue Mission
Light-gun aiming accuracy is the entire game
The Need for Speed
Holding racing lines at speed through traffic is the test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Rescue Mission
Enemy soldiers spawn on scripts, not adaptively
The Need for Speed
AI rivals and police follow fixed behaviour
Rescue Mission leans a little harder on variance, though the gap is small.
Rescue Mission
Enemy appearance timing adds some unpredictability
The Need for Speed
Traffic patterns add mild run-to-run noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Rescue Mission
Prioritizing threats offers light tactics
The Need for Speed
Track knowledge and car choice settle quickly
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.