Many of the enemies are taken from other Metroid titles, with
classic enemies converted very well into the 3D design — even their attack patterns haven't changed, and for the most part have been designed to look as much like the original designs as possible.
Not exact matches
Environments are either partially or completely
converted into metal worlds, and even
classic Kirby
enemies get a robotic makeover.
In Star Allies, you can
convert enemies into allies that fight alongside you, with both
classic and new copy abilities in play as Kirby absorbs foes.