head to head
F-Zero X asks more than Half-Life 2, and the gap is execution.

Execution · Pure Mechanics
The N64 entry whose boost-or-survive health gamble layers routing decisions onto raw speed control.

Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.
F-Zero X leans Execution (Pure Mechanics); Half-Life 2 leans Execution (Pure Mechanics).
F-Zero X leans clearly harder on execution.
F-Zero X
Sixty-frame control of thirty machines at top speed
Half-Life 2
Gravity gun and shooting demand precision.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero X
Rival AI is non-adaptive
Half-Life 2
Combine AI scripted, non-adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero X
X Cup random tracks are a minor mode
Half-Life 2
Almost no randomness.
F-Zero X leans clearly harder on optimization.
F-Zero X
Boost-health tradeoffs and shortcuts reward routing
Half-Life 2
Linear progression with no builds.
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.