head to head
vs
Mario Kart: Super CircuitvsNightmare Kart
Mario Kart: Super Circuit leans Execution (Practiced Mastery); Nightmare Kart leans Execution (Pure Mechanics).
Mario Kart: Super CircuitNightmare Kart
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads2 vs 2
Even - both lean on reads about the same.
Variance4 vs 3
Mario Kart: Super Circuit leans harder on variance: Item boxes randomise every race
Optimization5 vs 4
Mario Kart: Super Circuit leans harder on optimization: Time-trial lines and shortcut routes
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.