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 · Practiced Mastery
Tighter, sadder sequel that perfects the slow-motion noir gunfight.

Execution · Practiced Mastery
A Capcom side-scrolling shoot-em-up with a shop economy between missions.
Max Payne 2: The Fall of Max Payne leans Execution (Practiced Mastery); U.N. Squadron leans Execution (Practiced Mastery).
U.N. Squadron leans a little harder on execution, though the gap is small.
Max Payne 2: The Fall of Max Payne
refined bullet-time gunplay and physics kills
U.N. Squadron
Dodging dense fire and boss patterns is the test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Max Payne 2: The Fall of Max Payne
fully scripted opposition
U.N. Squadron
Enemy waves are fully scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Max Payne 2: The Fall of Max Payne
deterministic encounters
U.N. Squadron
Deterministic stages once memorized
U.N. Squadron leans a little harder on optimization, though the gap is small.
Max Payne 2: The Fall of Max Payne
bullet-time meter management and routing
U.N. Squadron
Shop purchases, pilot choice, and pattern routes
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.