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
An on-rails shooter testing raw aim speed against memorised spawn scripts.

Execution · Pure Mechanics
Arcade run-and-gun reflexes against fully memorisable boss patterns.
Heavy Fire: Afghanistan leans Execution (Pure Mechanics); Sunset Riders leans Execution (Pure Mechanics).
Sunset Riders leans a little harder on execution, though the gap is small.
Heavy Fire: Afghanistan
Aimbot literally completes this on-rails shooter
Sunset Riders
Dodging bullet spreads and snap-shooting bosses is everything
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Heavy Fire: Afghanistan
Enemies pop up on a fixed script
Sunset Riders
Bandits and bosses cycle memorisable arcade patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Heavy Fire: Afghanistan
Spawns are identical every run once seen
Sunset Riders
Spawns are deterministic each credit
Sunset Riders leans a little harder on optimization, though the gap is small.
Heavy Fire: Afghanistan
Memorising spawn order is the only depth
Sunset Riders
Pattern memorisation for one-credit clears is the meta-game
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.