The Kirby games are so different from Super Star though, even by standards of having different directors.
As for some key differences, heres an example...the ice
Kirby in Super Star compared to...Dream Land 3.
In super star, there are different attacks beyond just a freezing breath. Theres also a blizzard ability. In Dream Land 3, all abilities can only have one attack. An ice kirby can only do the ice breath.
And then theres the Stone
Kirby in different Kirby games. In Super Star, theres a bunch of unique forms of stone Kirby transforms into, and 2 extremely rare cameos. But in many Kirby games after that, Kirby just transforms into a small pink rock.
What was so significant about this particular game in the series that had the creators put so much extra effort into this game?