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

Execution · Practiced Mastery
A one-button Kirby racer whose chaotic City Trial mode became a cult multiplayer favourite.

Execution · Practiced Mastery
Street racer with stylized arcade handling.
Kirby Air Ride leans Execution (Practiced Mastery); Need for Speed Unbound 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.
Kirby Air Ride
Charge-boost timing and machine handling
Need for Speed Unbound
Arcade drift and grip handling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby Air Ride
Local multiplayer rivals add light prediction
Need for Speed Unbound
Online lobbies, AI cops
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby Air Ride
City Trial patch and event randomness
Need for Speed Unbound
Heat level and cop chase RNG
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby Air Ride
Machine stats and course lines are mappable
Need for Speed Unbound
Car build, betting strategy, garage growth
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.