head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
A licensed brawler testing combat timing and memorised boss patterns.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Dragon Ball: Revenge of King Piccolo leans Execution (Practiced Mastery); Super Mario World leans Execution (Pure Mechanics).
Super Mario World leans a little harder on execution, though the gap is small.
Dragon Ball: Revenge of King Piccolo
Combo timing and platforming reflexes carry the levels
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Dragon Ball: Revenge of King Piccolo leans a little harder on reads, though the gap is small.
Dragon Ball: Revenge of King Piccolo
Bosses run scripted patterns, never adapt
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.
Dragon Ball: Revenge of King Piccolo
Level content is fixed after one playthrough
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball: Revenge of King Piccolo
Learning boss movesets and stage routes is the rest
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.