head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Pure Mechanics
A PC rhythm game where matching colors on a spinning wheel turns charts into analog choreography.

Execution · Pure Mechanics
A brutal minimalist platformer where flipping gravity replaces jumping.
Spin Rhythm XD 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.
Spin Rhythm XD
Wheel-spinning, flicks, and taps demand analog precision
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.
Spin Rhythm XD
Charts never adapt
VVVVVV
No opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Spin Rhythm XD
Deterministic charts
VVVVVV
Every hazard is fixed and visible
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Spin Rhythm XD
Chart study and controller technique choices
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.