head to head
Guitar Hero Encore: Rocks the 80s asks more than Super Mario World, and the gap is execution.

Execution · Pure Mechanics
Finger speed and accuracy against fixed note charts of 80s tracks.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Guitar Hero Encore: Rocks the 80s leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Guitar Hero Encore: Rocks the 80s leans clearly harder on execution.
Guitar Hero Encore: Rocks the 80s
Hitting note charts at speed is a pure motor ceiling
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero Encore: Rocks the 80s
No opponent, just the chart
Super Mario World
Scripted Koopas adapt to nothing
Super Mario World leans a little harder on variance, though the gap is small.
Guitar Hero Encore: Rocks the 80s
Charts are fixed and fully memorisable
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.
Guitar Hero Encore: Rocks the 80s
Star power pathing squeezes out extra score
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.