Spoiler alert: The following section contains plot-specific details.(Skip Section)
On the day of judgment, this fluttery fiend will fly into action. Brought into existence by ”the greatest warrior in the galaxy“ and reborn as a knight of doom through years of adversity—now begins an epic battle with a pure being twisted by a dark past.”
Morpho Knight is a spherical creature with black skin, white glowing eyes and no mouth. He has yellow shoes and gloves. His armor is red with black ornamentations and white shoulder pads with a red swirl on both of them. His mask has horns which resemble antennae. He has red sparkling butterfly wings on his back. He wields a sword that looks similar to Galaxia, but it has a red and gold coloration with a butterfly pattern on its handle, with blue spots on both sides of the tip of the sword. What appears to be a gemstone can be seen on the handle, which has a thin black line across it, giving it a similar appearance to a snake's eye.
Morpho Knight acts just like Meta Knight and Galacta Knight in that he uses sword attacks, but Morpho Knight's sword is imbued with fire. If a friend has a Sword ability, they can deflect his sword attacks by attacking him, making their swords clash and causing him to flinch. However, one unique move Morpho Knight has is his ability to teleport. Additionally, Morpho Knight can fly to both sides of the screen, charging his sword, and emitting two giant ghostly faces. Morpho Knight may also slice forward and then up, trapping Kirby and his allies in the air while preforming a series of slashes on them before slicing them back onto the ground, dealing massive damage. Also, in his second phase, he creates a second sword, teleports to one side of the screen, and enlarges one of them. He then swings it forward, damaging anyone behind him or in front of him. He then repeats this on the other side. After that, he teleports to the center, enlarges both swords, and swings them down on each side. Morpho Knight can also teleport around the arena and release sound waves from his wings that turn the leading player’s friends against them, similar to what the core of Void Termina does; a Friend Heart must be thrown at the confused friends to return them to the leading player’s side. In the second phase, among with emitting two ghastly faces, he can instead emit one huge ghostly face, then fly to other side of the screen and summon another one. Additionally, he can create one to four tornadoes, depending on how many players there are, that head into the background and then charge into the foreground one at a time, similarly to Meta Knight's Mach Tornado.
Morpho Knight appears in the game's boss rush mode, The Ultimate Choice. He appears in the three highest levels of difficulty (Fiery Showdown, Infernal Crisis and Soul Melter).
Morpho Knight's name may hold multiple meanings. Morpho is a genus of tropical butterflies, and the word morph means to transform, which may allude to the fact he transforms from a butterfly.
Additionally, the name Morpho Knight might have been taken from the word "Metamorphosis".
If someone were to perish, this butterfly of paradise. Will Come flying from somewhere on its day of judgement. After many years resonating for pleas for life, brought upon the White knight dubbed the galaxy's strongest warrior, they become the knight from hades, and make their descent. With their history being buried in darkness, fighting them should be impossible. The curtain on this dream-like Battle rises!”
— Morpho Knight • Kirby Star Allies (Chinese Ver)
"Reborn Butterfly (Vs. Morpho Knight)"
"Real Dark Matter / Cloudy Park (Rick & Kine & Coo Ver.)"
"Vs. Marx (Meddlesome Marx) (Marx Ver.)"
"Vs. Dark Matter (Hyper Zone 1) (Gooey Ver.)"
"0² Battle / Vs. Miracle Matter / Ripple Star (Adeleine/Ribbon Ver.)"
"Boss Battle Theme / Vs. Dark Mind (Second Form) (Dark Meta Knight Ver.)"
"Squeak Squad Appears! (Daroach Ver.)"
Morpho Knight's design was first shown in the Japanese 20th Anniversary booklet. Given its artstyle, he was likely intended for use in the cancelled Kirby GCN game. His role in the game, as well as potential ties to Meta Knight are unknown, however, he is presumed to be Meta Knight’s beta design, but there is no confirmation for this. His design remains unaltered in Kirby Star Allies, though his sword slightly differs.
Morpho Knight's butterfly form is nearly identical to the orange butterflies that are seen in several of the newer Kirby opening and ending cutscenes.
Whether he is one in particular is unknown.
While real morpho butterflies are usually blue, Morpho Knight is mostly red, and resembles a Monarch Butterfly more. However, the female Morpho aega is a brownish-orange color. The design of the wings also shows that Morpho Knight is a Morpho butterfly as very few butterflies have that specific shape.
Morpho Knight's battle theme has a similar beat to Meta Knight's battle theme from Kirby Super Star.
When playing as one of the new Dream Friends added in updates 2.0.0 and 3.0.0, different music plays while fighting Morpho Knight along with the arena receiving a great revamp in design.