The roster covers 20 named Undertale characters from the main story and optional encounters. It excludes Deltarune characters, unnamed random encounters, fan creations, and alternate forms as separate answers. Name the characters from memory, answer trivia about the game's story, developer, and awards, pick roster members out of a tile grid of decoys, and fill in the most famous lines. Name the characters from their art and match each to a picture. No ranked mode (single game).