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
Infamous climbing game where one slip of the hammer undoes hours of progress.

Execution · Pure Mechanics
Pure rhythmic timing against fixed musical cues, minigame after minigame.
Getting Over It with Bennett Foddy leans Execution (Pure Mechanics); Rhythm Heaven Megamix leans Execution (Pure Mechanics).
Getting Over It with Bennett Foddy leans a little harder on execution, though the gap is small.
Getting Over It with Bennett Foddy
Every inch climbed is precise hammer micro-control
Rhythm Heaven Megamix
Beat-perfect input timing 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.
Getting Over It with Bennett Foddy
The mountain never adapts
Rhythm Heaven Megamix
No opponent - only the music
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Getting Over It with Bennett Foddy
Fully deterministic physics and terrain
Rhythm Heaven Megamix
Every minigame plays identically each attempt
Getting Over It with Bennett Foddy leans a little harder on optimization, though the gap is small.
Getting Over It with Bennett Foddy
Route knowledge helps but cannot replace hands
Rhythm Heaven Megamix
Cues are learned quickly; timing remains the wall
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.