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 · Twitch Chaos
A kart racer testing drift handling and item use across American courses.

Execution · Pure Mechanics
Open-world racer where banking risky speedpoints against human cops drives the tension.
Mickey's Speedway USA leans Execution (Twitch Chaos); Need for Speed: Rivals leans Execution (Pure Mechanics).
Need for Speed: Rivals leans a little harder on execution, though the gap is small.
Mickey's Speedway USA
Kart handling and drift timing decide races
Need for Speed: Rivals
Open-road control with pursuit tech timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Mickey's Speedway USA
AI racers are scripted, no adaptation
Need for Speed: Rivals
AllDrive mixes human cops and racers in
Mickey's Speedway USA leans a little harder on variance, though the gap is small.
Mickey's Speedway USA
Weapon item pickups add randomness
Need for Speed: Rivals
Dynamic open-world encounters and weather
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Mickey's Speedway USA
Track knowledge and item usage reward learning
Need for Speed: Rivals
Risk-versus-bank speedpoint economy
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.