head to head
vs
Donkey Kong Barrel BlastvsRock n' Roll Racing
Donkey Kong Barrel Blast leans Execution (Pure Mechanics); Rock n' Roll Racing leans Execution (Practiced Mastery).
Donkey Kong Barrel BlastRock n' Roll Racing
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads1 vs 1
Even - both lean on reads about the same.
Variance3 vs 2
Donkey Kong Barrel Blast leans harder on variance: Item boxes and Wild Moves add randomness
Optimization4 vs 5
Rock n' Roll Racing leans harder on optimization: Upgrade purchases and planet-by-planet earnings are plannable.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.