Lea would dress up as a dullahan, or at least have the same striped pattern around his next that his legs do.
Static would be wrapped in bandages heavily and would be a mummy! Well, except for his face. He need to eat food and stuff.
Andri would just go as himself. He’d wear one of the cute outfits that he likes to wear sometimes.
Gerrick would probably dress up as one of his friends. Something like… yellow sweater, glasses, and blue shorts.
Nall would want to go as some sort of blue/red combination from Tron.
And Vaiyu would be his programmer! A basic relaxed office outfit I suppose.
Makoto would dress up in a jinbei with an ocean pattern on it!
Esther would like to go as Primrose from Octopath Traveler or Throné from Octopath 2.
Chal would dress up in some kind of steampunk suit, especially if it would have a charming little cap with it!
And Jasper? Jasper would dress up like some sort of yakuza boss. He’s into the relaxed but intimidating sort of style!