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
A rhythm game testing pure input timing on fixed DJ-flavored charts.

Execution · Pure Mechanics
A brutal minimalist platformer where flipping gravity replaces jumping.
D4DJ Groovy Mix 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.
D4DJ Groovy Mix
Note timing under disc-scratch mechanics is the entire test
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.
D4DJ Groovy Mix
No opponent - the chart never adapts
VVVVVV
No opponent
D4DJ Groovy Mix leans a little harder on variance, though the gap is small.
D4DJ Groovy Mix
Charts are fixed; only event banners rotate
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.
D4DJ Groovy Mix
Card scoring teams matter for events, not for skill
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.