head to head
vs
Metal Slug 4vsNinja Gaiden: Ragebound
Metal Slug 4 leans Execution (Pure Mechanics); Ninja Gaiden: Ragebound leans Execution (Pure Mechanics).
Metal Slug 4Ninja Gaiden: Ragebound
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.
Variance1 vs 0
Metal Slug 4 leans harder on variance: minor drop randomness
Optimization5 vs 4
Metal Slug 4 leans harder on optimization: memorized patterns and routes solvable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.