head to head
Tetris Effect: Connected 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
The classic execution-under-acceleration test wrapped in an immersive audiovisual experience.
Super Mario World leans Execution (Pure Mechanics); Tetris Effect: Connected leans Execution (Pure Mechanics).
Tetris Effect: Connected leans clearly harder on execution.
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Tetris Effect: Connected
Precision placement under acceleration is the entire skill ceiling
Tetris Effect: Connected leans a little harder on reads, though the gap is small.
Super Mario World
Scripted Koopas adapt to nothing
Tetris Effect: Connected
Zone-battle opponents exist but format leans on execution
Tetris Effect: Connected leans clearly harder on variance.
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Tetris Effect: Connected
Piece bag is bounded random but quickly mappable
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
Tetris Effect: Connected
T-spin and stacking strategy is knowable but execution overrides it
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.