head to head
vs
2DarkvsMetroid
2Dark leans Optimization (Practiced Mastery); Metroid leans Optimization (Practiced Mastery).
2DarkMetroid
Axis by axis
Execution4 vs 5
Metroid leans harder on execution: stiff NES jumps and tough enemy contact
Reads0 vs 0
Even - both lean on reads about the same.
Variance4 vs 3
2Dark leans harder on variance: Dark unknown layouts and ambushes on first runs
Optimization6 vs 6
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.