head to head
vs
Metroid Prime 2: EchoesvsNihilumbra
Metroid Prime 2: Echoes leans Optimization (Practiced Mastery); Nihilumbra leans Optimization (Pure Optimization).
Metroid Prime 2: EchoesNihilumbra
Axis by axis
Execution4 vs 4
Even - both lean on execution about the same.
Reads0 vs 0
Even - both lean on reads about the same.
Variance2 vs 1
Metroid Prime 2: Echoes leans harder on variance: dark-world hazards surprise until learned
Optimization6 vs 7
Nihilumbra leans harder on optimization: Choosing which colour solves each terrain puzzle is the game
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.