Carbon Costume 
Lancer from Deltarune
Lancer is a main character from the game Deltarune. A Darkner like Spamton, Ralsei, and Jevil, Lancer is white and black with blue details including and looks like a spade from a deck of cards. For your costume, you can start with a white full-body suit. Wear a blue hood, blue gloves, and blue shoes. Add an iron-on blue spade decal to a black leotard to wear over top and you’re ready to go.
Mettaton from Undertale
Mettaton is a robot with a soul who appears in Undertale. Spamton includes several references to Mettaton in Deltarune. Mettaton’s original appearance is a box with rectangular lights, but he is eventually transformed into a more humanoid body created by Alphys. To create your Mettaton costume, you’ll want to start with a metallic shirt and gloves, black pants, and pink boots. Then, don a set of black shoulder pads and layer a black tank top with pink skull and crossbones over top. Add a pink heart sticker to a metallic silver belt and don’t forget your emo wig to complete the look.
Spamton G. Spamton from Deltarune
Spamton G. Spamton is a darkner in Deltarune. First encountered in Cyber City as a miniboss, Spamton can also be a bonus boss like Jevil, depending on the decisions made by the player. Spamton has a look based around that of traditional ventriloquist dummies, with slicked-back black hair, white skin, an unnerving smile, and red cheek circles. To recreate this look, you can use a white hooded bodysuit as your base. Use fabric glue to attach red felt circles and then draw the smile on with a fabric marker. Then, throw on your wig, black shirt and pants, and bi-colored sunglasses overtop and you’ll be ready to terrorize Cyber World.
Ralsei from Deltarune
Ralsei is a Darkner from the Deltarune game. Ralsei is a secondary protagonist and a friend to Kris. He also acts as the party’s healer. When not wearing his hat, Ralsei appears as a white goat-like creature. When wearing his hat, however, his fur turns black in color instead. To recreate his look, you’ll need to layer a green robe, hat, and glasses over black underlayers. You can use white and black fabric markers to add details to the face mask and the front of the robe.
Jevil from Deltarune
Jevil is a portly imp and an antagonist in the game Deltarune. In chapter 1 of the game, Jevil serves at the first bonus boss. He is a Darkner and one of the holders of the Shadow Crystal. Jevil has grey skin and wears a black and purple jester’s costume with a lime green collar and matching shoes. With a purple tail and yellow teeth, he’s a truly peculiar-looking character.
Kris from Deltarune
Kris is the main character from Toby Fox’s game Deltarune. They are the human Hero of Light and the leader of their group, though that is only once they fall into the dark world. Before that, though, Kris is a kind but quiet person that some mistake for awkward or creepy. That does not stop Kris from standing by their friends, though!
There are two costumes you can use if you want to dress as Kris. The first is a pair of black jeans and black high tops with a green pullover. In this form, Kris’ hair is a dark brown. In the dark world, however, Kris has dark blue hair and wears silver armor over a dark blue body suit. The also have a cape in blue and pink that is most easily replicated with a large sheet scarf.
