head to head
Kirby Star Allies asks more than Thank Goodness You're Here!, and the gap is optimization.

Optimization · Practiced Mastery
An easygoing co-op Kirby about recruiting enemies as friends and combining their elemental powers.

Optimization · Light / Casual
A surreal British comedy game where a tiny salesman slaps his way through a Yorkshire town's errands.
Kirby Star Allies leans Optimization (Practiced Mastery); Thank Goodness You're Here! leans Optimization (Light / Casual).
Kirby Star Allies leans a little harder on execution, though the gap is small.
Kirby Star Allies
Very low difficulty, AI allies carry fights
Thank Goodness You're Here!
Walking and slapping, nothing demanding
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kirby Star Allies
Friend AI helps rather than opposes
Thank Goodness You're Here!
No opponent, only townsfolk bits
Kirby Star Allies leans a little harder on variance, though the gap is small.
Kirby Star Allies
Fixed layouts and bosses
Thank Goodness You're Here!
Jokes land in fixed order
Kirby Star Allies leans clearly harder on optimization.
Kirby Star Allies
Friend-ability element combos solve puzzles
Thank Goodness You're Here!
Light errand sequencing at most
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.