Building comparison
head to head
Super Mario WorldvsUm Jammer Lammy
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.
Super Mario World
Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Um Jammer Lammy
Execution · Pure Mechanics
PaRappa spinoff guitar rhythm game with famously strict and slippery timing judgment.
Super Mario World leans Execution (Pure Mechanics); Um Jammer Lammy leans Execution (Pure Mechanics).
Super Mario WorldUm Jammer Lammy
Axis by axis
Execution7 vs 8
Um Jammer Lammy leans a little harder on execution, though the gap is small.
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Um Jammer Lammy
Loose timing windows punish imprecise guitar inputs
Reads0 vs 0
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
Um Jammer Lammy
Call-and-response lines are scripted
Variance1 vs 1
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Um Jammer Lammy
Fixed songs, ad-lib scoring slightly opaque
Optimization4 vs 3
Super Mario World leans a little harder on optimization, though the gap is small.
Super Mario World
Secret exits and route knowledge add a modest solvable layer
Um Jammer Lammy
Freestyle Cool-mode lines can be crafted and learned
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.