head to head
vs
Gitaroo Man Lives!vsPaRappa the Rapper
Gitaroo Man Lives! leans Execution (Pure Mechanics); PaRappa the Rapper leans Execution (Pure Mechanics).
Gitaroo Man Lives!PaRappa the Rapper
Axis by axis
Execution9 vs 8
Gitaroo Man Lives! leans harder on execution: Stick-tracing and button timing to music is everything
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 1
Even - both lean on variance about the same.
Optimization3 vs 3
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.