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
A top-down maze shooter about surviving robots while grabbing a randomly-placed gun.

Execution · Twitch Chaos
Flipper execution and table knowledge with Pokémon-catching RNG on top.
Night Stalker leans Execution (Pure Mechanics); Pokémon Pinball leans Execution (Twitch Chaos).
Night Stalker leans a little harder on execution, though the gap is small.
Night Stalker
Shooting and dodging robots in the maze is the lead demand
Pokémon Pinball
Flipper timing and nudge control are the whole input
Night Stalker leans a little harder on reads, though the gap is small.
Night Stalker
Enemies are scripted, not adaptive minds
Pokémon Pinball
A pinball table has no mind
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Night Stalker
Random gun placement and enemy movement add chaos
Pokémon Pinball
Ball physics and catch-mode rolls add real randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Night Stalker
Learning maze flow and gun-grab timing rewards play
Pokémon Pinball
Mode routing and table knowledge raise scores predictably
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.