If a boss fight takes place in Prince Froggy's stomach, how come you die if on a later level, if you get eaten by a Lunge Fish?
Maybe Kamek (who made Yoshi shrink in the first place) made it so Yoshi would live, and be alive while Prince Froggy was digesting him.
What exactly do these "stars" do in Yoshi's Island DS? I mean as in the star children; the reason Bowser goes back in time. What do they do? Does it give them some kind of power or something. It was rather ambiguous.
It... gives them top billing in the series, including spinoffs? Maybe it's more than that, but I wouldn't know. Still, I'm fond of the theory that the seventh star child, a green Yoshi, was granted the ability to speak properly. Thus he's the fluent Yoshi seen in a number of earlier games, most notably Super Mario RPG, where he serves as a translator.
(Original Poster) I believe that the green Yoshi who is the seventh star child is THE Yoshi, and it makes sense (they wouldn't just make it a random Yoshi). But is it officially him?
Well, Bowser stated that the power the stars would give him would enable him to take over the universe, so I guess that's the answer...
Just where is World 6 anyways? And why does Yoshi need to climb to the top of the island to get there?