head to head
Mount Your Friends asks more than Super Mario World, and the gap is reads.

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

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Mount Your Friends leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Mount Your Friends leans a little harder on execution, though the gap is small.
Mount Your Friends
QWOP-like limb control under a timer is the entire challenge
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Mount Your Friends leans clearly harder on reads.
Mount Your Friends
Rivals shape the tower but climbing is solo execution
Super Mario World
Scripted Koopas adapt to nothing
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
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Super Mario World leans a little harder on optimization, though the gap is small.
Mount Your Friends
Grip-route planning up the pile helps marginally
Super Mario World
Secret exits and route knowledge add a modest solvable layer
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.