head to head
Unreal Tournament 2003 asks more than Super Mario World, and the gap is reads.

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

Execution · Pure Mechanics
A fast arena shooter where twitch aim and movement against human opponents is everything.
Super Mario World leans Execution (Pure Mechanics); Unreal Tournament 2003 leans Execution (Pure Mechanics).
Unreal Tournament 2003 leans clearly harder on execution.
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Unreal Tournament 2003
aim and movement speed decide duels
Unreal Tournament 2003 leans clearly harder on reads.
Super Mario World
Scripted Koopas adapt to nothing
Unreal Tournament 2003
predicting human opponent positioning
Unreal Tournament 2003 leans a little harder on variance, though the gap is small.
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Unreal Tournament 2003
weapon and pickup spawns vary
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Super Mario World
Secret exits and route knowledge add a modest solvable layer
Unreal Tournament 2003
map control and item timing solvable
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.