head to head
Neither is simply harder - they are hard in different places. Off The Grid demands more variance; Super Smash Bros. Melee demands more reads.

Execution · Competitive PvP
Aim duels against humans under loot randomness and extraction pressure.

Execution · Competitive PvP
A platform fighter with one of the highest execution ceilings in any competitive game, layered on top of deep human reads.
Off The Grid leans Execution (Competitive PvP); Super Smash Bros. Melee leans Execution (Competitive PvP).
Super Smash Bros. Melee leans clearly harder on execution.
Off The Grid
Gunfights reward aim and movement above all
Super Smash Bros. Melee
Wavedashing, L-cancels, and tech-chasing set an extreme physical ceiling
Super Smash Bros. Melee leans clearly harder on reads.
Off The Grid
Predicting human rotations, ambushes and extraction timing matters constantly
Super Smash Bros. Melee
Reading DI choices and opponent adaptive habits is constant and non-convergent
Off The Grid leans clearly harder on variance.
Off The Grid
Loot rolls, drops and encounter locations randomise runs
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.
Off The Grid
Cyberlimb loadouts and map economy are learnable systems
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.