head to head
Call of Duty: Modern Warfare 2 asks more than Fatal Fury Special, and the gap is variance.

Execution · Competitive PvP
Blockbuster 2009 sequel famous for killstreak chains and frantic multiplayer.

Execution · Competitive PvP
The beloved upgrade of Fatal Fury 2 whose two-plane stages add a dodge dimension to classic footsies.
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); Fatal Fury Special leans Execution (Competitive PvP).
Call of Duty: Modern Warfare 2 leans a little harder on execution, though the gap is small.
Call of Duty: Modern Warfare 2
Fast time-to-kill rewards raw aim and reflex
Fatal Fury Special
Strict motion inputs and combo timing typical of 90s SNK.
Fatal Fury Special leans a little harder on reads, though the gap is small.
Call of Duty: Modern Warfare 2
Outguessing human rotations and flanks
Fatal Fury Special
Two-plane dodging adds a guessing layer to human footsies.
Call of Duty: Modern Warfare 2 leans clearly harder on variance.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
Fatal Fury Special
Deterministic; nothing hidden.
Call of Duty: Modern Warfare 2 leans a little harder on optimization, though the gap is small.
Call of Duty: Modern Warfare 2
Killstreak economy, loadout and map knowledge
Fatal Fury Special
Punish routes and plane-shift tactics 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.