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

Execution · Pure Mechanics
A DS spin-off where you befriend wild Pokemon by drawing unbroken loops around them with the stylus.
Half-Life 2 leans Execution (Pure Mechanics); Pokemon Ranger leans Execution (Pure Mechanics).
Pokemon Ranger leans a little harder on execution, though the gap is small.
Half-Life 2
Gravity gun and shooting demand precision.
Pokemon Ranger
Circling Pokemon with the stylus without breaking the loop
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life 2
Combine AI scripted, non-adaptive.
Pokemon Ranger
Capture targets move on set patterns
Pokemon Ranger leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
Pokemon Ranger
Movement patterns vary slightly per attempt
Pokemon Ranger leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Pokemon Ranger
Poke Assist choices and capture order help
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.