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.

Variance · Systems & Chaos
A scripted horror story mixing light stealth with cipher and item puzzles.
Pony Island leans Optimization (Practiced Mastery); The Beast Inside leans Variance (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
The Beast Inside
Stealth and chase sequences demand only modest control
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
The Beast Inside
Threats run on scripted triggers, never adapting
The Beast Inside leans a little harder on variance, though the gap is small.
Pony Island
Meta twists are hidden information that spend on first reveal
The Beast Inside
Scares and story turns are unknown on a first playthrough
Pony Island leans a little harder on optimization, though the gap is small.
Pony Island
Code-tinkering puzzles have fixed discoverable solutions
The Beast Inside
Cipher puzzles and item logic form the solvable layer
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.