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 · Practiced Mastery
A falling-block puzzle testing fast placement and chain-clear setups under pressure.

Execution · Practiced Mastery
Careful climbing execution and route planning where a single mistimed grab undoes everything.
Kirby's Star Stacker leans Execution (Practiced Mastery); Peak leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby's Star Stacker
Fast block placement under rising pressure demands speed
Peak
Stamina-managed grip timing - one slipped input drops the whole climb
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby's Star Stacker
Solo puzzle with no opponent to model
Peak
Co-op against a mountain, no adaptive opponent
Kirby's Star Stacker leans a little harder on variance, though the gap is small.
Kirby's Star Stacker
Falling-block sequence is random but rapidly mappable
Peak
Daily map rotation and item spawns shuffle each ascent
Kirby's Star Stacker leans a little harder on optimization, though the gap is small.
Kirby's Star Stacker
Setting up cascading star clears is the strategy layer
Peak
Routing the wall and rationing items decides summit attempts
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.