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

Execution · Light / Casual
A pack-in 3D platformer celebrating PlayStation history.

Execution · Light / Casual
A visual novel with light rhythm-based minigame segments.
Astro's Playroom leans Execution (Light / Casual); Symphonic Rain leans Execution (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Astro's Playroom
Very forgiving platforming
Symphonic Rain
light rhythm-timing input needed
Astro's Playroom leans a little harder on reads, though the gap is small.
Astro's Playroom
Scripted enemies
Symphonic Rain
no opponent to out-predict
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Astro's Playroom
Static levels
Symphonic Rain
minor branching randomness
Astro's Playroom leans a little harder on optimization, though the gap is small.
Astro's Playroom
Collectible completion
Symphonic Rain
minimal systems beyond song mastery
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.