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

Execution · Practiced Mastery
Landmark scripted FPS following Gordon Freeman through the Black Mesa disaster.

Execution · Practiced Mastery
Fast pattern-matching of cookie rows under accelerating speed pressure.
Half-Life leans Execution (Practiced Mastery); Yoshi's Cookie leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Combat aim and infamous platforming sections
Yoshi's Cookie
Sliding rows quickly under rising speed pressures the hands
Yoshi's Cookie leans a little harder on reads, though the gap is small.
Half-Life
Marines flank by script, not by modelling you
Yoshi's Cookie
Versus mode adds only light opponent awareness
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Set pieces surprise only on first run
Yoshi's Cookie
Cookie spawns randomise but patterns are bounded
Half-Life leans a little harder on optimization, though the gap is small.
Half-Life
Resource routing and encounter knowledge for speedruns
Yoshi's Cookie
Recognising clear setups efficiently is half the score
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.