Building comparison
head to head
Guitar Hero III: Legends of RockvsRhythm Heaven
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.
Guitar Hero III: Legends of Rock
Execution · Pure Mechanics
Series peak whose hardest charts became a benchmark for human finger speed.
Rhythm Heaven
Execution · Pure Mechanics
Minimalist rhythm minigame collection demanding near-perfect beat timing.
Guitar Hero III: Legends of Rock leans Execution (Pure Mechanics); Rhythm Heaven leans Execution (Pure Mechanics).
Guitar Hero III: Legends of RockRhythm Heaven
Axis by axis
Execution10 vs 9
Guitar Hero III: Legends of Rock leans a little harder on execution, though the gap is small.
Guitar Hero III: Legends of Rock
Through the Fire and Flames defines a hands ceiling
Rhythm Heaven
Pure timing precision against audio cues.
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero III: Legends of Rock
Charts are fixed; boss battles are gimmicks
Rhythm Heaven
No opponent exists.
Variance0 vs 1
Rhythm Heaven leans a little harder on variance, though the gap is small.
Guitar Hero III: Legends of Rock
Deterministic note charts
Rhythm Heaven
Cue patterns are fixed once heard.
Optimization2 vs 2
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero III: Legends of Rock
Squeeze paths and star power optimization for scores
Rhythm Heaven
Learning each minigame's rhythm is shallow and quick.
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.