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.

Optimization · Practiced Mastery
A meta puzzle box testing curiosity and one-time discovery more than any repeatable skill.

Optimization · Systems & Chaos
Surviving 1000 randomised rooms by mapping each monster's fixed rules.
Pony Island leans Optimization (Practiced Mastery); Spooky's Jump Scare Mansion leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Pony Island
Light arcade hopping segments with low demands
Spooky's Jump Scare Mansion
Chase sequences need only basic evasion movement
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Pony Island
The devil's tricks are authored scripts, not adaptation
Spooky's Jump Scare Mansion
Specimens follow rules-based behaviour, not adaptive minds
Spooky's Jump Scare Mansion leans a little harder on variance, though the gap is small.
Pony Island
Meta twists are hidden information that spend on first reveal
Spooky's Jump Scare Mansion
Random room draws and specimen spawns vary each descent
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Pony Island
Code-tinkering puzzles have fixed discoverable solutions
Spooky's Jump Scare Mansion
Learning each specimen's rules converges runs into routine
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.