Since we've already seen what happens when you break Peach out of there, I'll go with saving Zelda when I first play it (unless of course, they rigged it so that Kirby only escapes with Peach, and Zelda still gets turned into a trophy by Wario).
Also, I've a feeling that, when it comes to breaking them out from Petey's cages, you can only play as Kirby (aside from the fact that Mario was knocked nine ways to sunday out of the stadium).
Also, I've a feeling that, when it comes to breaking them out from Petey's cages, you can only play as Kirby (aside from the fact that Mario was knocked nine ways to sunday out of the stadium).