After Kirby left Zelda for a few seconds, Bowser turned her into a trophy and had Shadowbugs cover the trophy. Shortly after, False Zelda prepares to turn Link and Yoshi into trophies, but is stopped by Mario and Pit.
(NOTE: This only occurs if you save Zelda at the Midair Stadium. If you save Peach, Subspace Zelda will be replaced by False Peach)
Much like Zelda (only with glowing eyes & all purple).
False Zelda is one of the only bosses you don't beat in Boss Battle (the other 2 being False Peach & False Diddy Kong).