head to head
Ultratron asks more than Super Mario World, and the gap is variance.

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

Execution · Pure Mechanics
A twin-stick arena blaster testing sustained dodging reflexes and upgrade picks.
Super Mario World leans Execution (Pure Mechanics); Ultratron leans Execution (Pure Mechanics).
Ultratron leans a little harder on execution, though the gap is small.
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Ultratron
Twin-stick dodging through bullet swarms is the entire test
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
Ultratron
Robots swarm in fixed behaviours, nothing adapts
Ultratron leans clearly harder on variance.
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Ultratron
Enemy spawns and power-up drops shuffle each level
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
Ultratron
Upgrade pet-and-perk choices shape survivability
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.