head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Competitive PvP
A boxing game testing punch timing and reading opponent openings.

Execution · Competitive PvP
The N64 original that turned Nintendo mascots into a percent-and-knockback platform fighter.
Real Boxing leans Execution (Competitive PvP); Super Smash Bros. leans Execution (Competitive PvP).
Real Boxing leans a little harder on execution, though the gap is small.
Real Boxing
Timing punches, blocks and dodges is the core
Super Smash Bros.
Z-cancels and DI demand fast precise inputs despite simple controls.
Super Smash Bros. leans a little harder on reads, though the gap is small.
Real Boxing
Reading opponent feints matters in multiplayer
Super Smash Bros.
Edgeguard and tech-chase guessing against adapting humans decides stocks.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Real Boxing
Little randomness in outcomes
Super Smash Bros.
Item spawns add randomness; tournament rules strip most of it.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Real Boxing
Stat training and stamina management add depth
Super Smash Bros.
Stage positioning and percent-based kill setups are learnable.
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.