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

Execution · Pure Mechanics
A fast reflex platformer about swinging through hazardous environments precisely.

Execution · Pure Mechanics
Arcade run-and-gun reflexes against fully memorisable boss patterns.
Alien Spidy leans Execution (Pure Mechanics); Sunset Riders leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Spidy
Quick swinging and precise reflexes define every level
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.
Alien Spidy
Solo platformer with no adaptive opponent
Sunset Riders
Bandits and bosses cycle memorisable arcade patterns
Alien Spidy leans a little harder on variance, though the gap is small.
Alien Spidy
Hazards are fixed and learnable
Sunset Riders
Spawns are deterministic each credit
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Spidy
Optimal pathing speeds collection runs
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.