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

Execution · Pure Mechanics
Absurd physics limb control tested under a timer atop a tower of friends.

Execution · Pure Mechanics
Hitting braking points and managing weight transfer lap after deterministic lap.
Mount Your Friends leans Execution (Pure Mechanics); Need for Speed: Shift 2 Unleashed 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.
Mount Your Friends
QWOP-like limb control under a timer is the entire challenge
Need for Speed: Shift 2 Unleashed
Braking points and weight transfer control define lap times
Mount Your Friends leans a little harder on reads, though the gap is small.
Mount Your Friends
Rivals shape the tower but climbing is solo execution
Need for Speed: Shift 2 Unleashed
AI drivers follow racing lines, humans rarely adapt deeply
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Mount Your Friends
The stack you face is visible, nothing hidden
Need for Speed: Shift 2 Unleashed
Deterministic physics - the track never changes
Need for Speed: Shift 2 Unleashed leans a little harder on optimization, though the gap is small.
Mount Your Friends
Grip-route planning up the pile helps marginally
Need for Speed: Shift 2 Unleashed
Car setup tuning and line study underpin pace
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.