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
Synesthetic rail shooter where shooting on the beat scores a psychedelic symphony.

Execution · Pure Mechanics
The Guitar Hero entry that added drums and vocals to chase full-band play.
Child of Eden leans Execution (Pure Mechanics); Guitar Hero: World Tour 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.
Child of Eden
Lock-on rhythm targeting and dodge precision
Guitar Hero: World Tour
Fret-and-strum accuracy on expert note charts
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Child of Eden
Enemies follow choreographed waves
Guitar Hero: World Tour
Charts never adapt
Child of Eden leans a little harder on variance, though the gap is small.
Child of Eden
Deterministic stage choreography
Guitar Hero: World Tour
Deterministic charts
Child of Eden leans a little harder on optimization, though the gap is small.
Child of Eden
Score routes and memorised wave patterns
Guitar Hero: World Tour
Star power activation paths drive top scores
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.