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
A block-breaker testing paddle precision and reaction against accelerating ball physics.

Execution · Pure Mechanics
A rhythm racer that turns any music file into a reflex puzzle track.
Arkanoid DS leans Execution (Pure Mechanics); Audiosurf leans Execution (Pure Mechanics).
Arkanoid DS leans a little harder on execution, though the gap is small.
Arkanoid DS
Precise paddle control to keep the ball alive
Audiosurf
Lane-switching to the beat tests reaction speed.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Arkanoid DS
Solo block-breaker, no opponent to model
Audiosurf
No opponent.
Arkanoid DS leans a little harder on variance, though the gap is small.
Arkanoid DS
Power-up drops are randomized each play
Audiosurf
Track generated from song, then fixed.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Arkanoid DS
Brick-clearing order and angles reward planning
Audiosurf
Block-matching color strategy learnable per song.
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.