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 · Pure Mechanics
The free fan-made Guitar Hero engine where competitive charting and scoring live on.

Execution · Pure Mechanics
Pure jump timing over fully fixed, memorisable levels.
Clone Hero leans Execution (Pure Mechanics); Super Mario Bros. leans Execution (Pure Mechanics).
Clone Hero leans a little harder on execution, though the gap is small.
Clone Hero
Community charts push fretting speed past official games
Super Mario Bros.
Perfect inputs trivialise momentum jumps over fixed hazards
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Clone Hero
Charts are static
Super Mario Bros.
Goombas walk left forever - nothing to predict
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Clone Hero
Fully deterministic
Super Mario Bros.
Every level is identical on every run
Super Mario Bros. leans a little harder on optimization, though the gap is small.
Clone Hero
Star power path calculation is a science
Super Mario Bros.
Level memorisation and warp routing are fully 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.