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

Execution · Pure Mechanics
Minimalist rhythm minigame collection demanding near-perfect beat timing.

Execution · Pure Mechanics
A brutal minimalist platformer where flipping gravity replaces jumping.
Rhythm Heaven leans Execution (Pure Mechanics); VVVVVV leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Rhythm Heaven
Pure timing precision against audio cues.
VVVVVV
Pixel-perfect gravity flips through spike gauntlets
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Rhythm Heaven
No opponent exists.
VVVVVV
No opponent
Rhythm Heaven leans a little harder on variance, though the gap is small.
Rhythm Heaven
Cue patterns are fixed once heard.
VVVVVV
Every hazard is fixed and visible
VVVVVV leans a little harder on optimization, though the gap is small.
Rhythm Heaven
Learning each minigame's rhythm is shallow and quick.
VVVVVV
Routes are short and obvious; execution is everything
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.