head to head
Nintendo World Cup asks more than Half-Life 2, and the gap is reads.

Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.

Execution · Pure Mechanics
Arcade soccer testing reflex tackles and super-shot timing.
Half-Life 2 leans Execution (Pure Mechanics); Nintendo World Cup leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life 2
Gravity gun and shooting demand precision.
Nintendo World Cup
Tackles and super-shot timing decide most goals
Nintendo World Cup leans clearly harder on reads.
Half-Life 2
Combine AI scripted, non-adaptive.
Nintendo World Cup
Versus a human, shot fakes add light prediction
Nintendo World Cup leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
Nintendo World Cup
Ball physics add minor chaos
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life 2
Linear progression with no builds.
Nintendo World Cup
Learning super-move triggers is a small solvable layer
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.