head to head
VVVVVV asks more than Super Mario World, and the gap is execution.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.

Execution · Pure Mechanics
A brutal minimalist platformer where flipping gravity replaces jumping.
Super Mario World leans Execution (Pure Mechanics); VVVVVV leans Execution (Pure Mechanics).
VVVVVV leans clearly harder on execution.
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
VVVVVV
Pixel-perfect gravity flips through spike gauntlets
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Super Mario World
Scripted Koopas adapt to nothing
VVVVVV
No opponent
Super Mario World leans a little harder on variance, though the gap is small.
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
VVVVVV
Every hazard is fixed and visible
Super Mario World leans a little harder on optimization, though the gap is small.
Super Mario World
Secret exits and route knowledge add a modest solvable layer
VVVVVV
Routes are short and obvious; execution is everything
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.