head to head
Super Smash Bros. Melee asks more than NBA 2K15, and the gap is execution.

Execution · Competitive PvP
Tests shot timing and play-calling prediction against human defenders.

Execution · Competitive PvP
A platform fighter with one of the highest execution ceilings in any competitive game, layered on top of deep human reads.
NBA 2K15 leans Execution (Competitive PvP); Super Smash Bros. Melee leans Execution (Competitive PvP).
Super Smash Bros. Melee leans clearly harder on execution.
NBA 2K15
Shot-stick timing and dribble moves demand practiced hands
Super Smash Bros. Melee
Wavedashing, L-cancels, and tech-chasing set an extreme physical ceiling
Super Smash Bros. Melee leans clearly harder on reads.
NBA 2K15
Versus humans, baiting defenders and calling counters drives possessions
Super Smash Bros. Melee
Reading DI choices and opponent adaptive habits is constant and non-convergent
NBA 2K15 leans a little harder on variance, though the gap is small.
NBA 2K15
Shot RNG and loose balls swing close games
Super Smash Bros. Melee
Stage hazard RNG and spawn positions add marginal chaos
Super Smash Bros. Melee leans a little harder on optimization, though the gap is small.
NBA 2K15
Playbooks, matchups and roster management reward system study
Super Smash Bros. Melee
Character matchup tiers and optimal movement routing are deeply studied
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.