head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
Light twin-stick dodging through scripted robot arenas.

Execution · Practiced Mastery
A playable pop album blending rhythm, racing, and shooting into a forgiving stylish ride.
Kitten Squad leans Execution (Practiced Mastery); Sayonara Wild Hearts 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.
Kitten Squad
Twin-stick dodging and aiming is the whole challenge
Sayonara Wild Hearts
Moderate dodging and timing, deliberately forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kitten Squad
Robot enemies follow simple scripts
Sayonara Wild Hearts
Scripted pop-album set pieces
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Kitten Squad
Levels repeat identically between attempts
Sayonara Wild Hearts
Fixed levels with memorizable layouts
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Kitten Squad
Weapon picks and learned layouts give modest edges
Sayonara Wild Hearts
Gold-rank score chasing rewards route learning
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.