head to head
vs
Hudson's Adventure IslandvsTime Surfer
Hudson's Adventure Island leans Execution (Pure Mechanics); Time Surfer leans Execution (Pure Mechanics).
Hudson's Adventure IslandTime Surfer
Axis by axis
Execution8 vs 8
Even - both lean on execution about the same.
Reads0 vs 0
Even - both lean on reads about the same.
Variance2 vs 3
Time Surfer leans harder on variance: procedurally generated obstacle patterns
Optimization3 vs 2
Hudson's Adventure Island leans harder on optimization: level route and skateboard memorization
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.