Blueberry Sans Costume Guide

In the vibrant world of Undertale's UnderSwap AU, Blueberry Sans emerges as a character brimming with energy and enthusiasm. This guide provides a comprehensive pathway to crafting your very own Blueberry Sans costume, delving into attire selection, acting tips to embody his personality, coupled with inventive ideas for both couple and group costumes. Additionally, insights into the character's background and a summary of his cultural impact enrich your portrayal, ensuring an authentic and memorable costume experience.

Blueberry Sans Costume Essentials

How To Dress Like Blueberry Sans

Dress Like Blueberry Sans

To authentically capture the essence of Blueberry Sans, a character known for his dynamic and vivid appearance, careful selection of costume elements is key. This section breaks down the essentials you need to create a convincing portrayal.

Essential Costume Components

  • What You Need: Grey Ultra Cotton T-Shirt, Grey Classic-Fit Short, Sans Mask, Turquoise Scarf, Satin Gloves, and Waterproof Shoe Cover.
  • How to Do It: Begin with the grey t-shirt as the base, paired with classic-fit shorts. The mask, capturing Sans' iconic skeletal features, is a focal point. Accentuate with a bright turquoise scarf, matching gloves, and shoe covers to mirror his vibrant personality.
  • Bonus Tips: Weather the t-shirt and shorts for a more authentic, lived-in look, reflecting Sans' adventurous spirit.

Adding Layers and Detail

  • What You Need: 1/2 inch Duct Tape (for detailing), Additional Turquoise Accessories.
  • How to Do It: Use duct tape to add specific design elements to the t-shirt and shorts, reflecting the character's unique style. Incorporate extra turquoise accessories, like a belt or bandana, for an added touch of character authenticity.
  • Bonus Tips: Study reference images to accurately place tape patterns. Consider using fabric paint for more permanent detailing.

The Mask: A Central Piece

  • What You Need: Sans Mask with detailed facial features.
  • How to Do It: Ensure the mask fits comfortably and securely, allowing for clear vision and speech. The mask should reflect Sans' facial expressions as closely as possible.
  • Bonus Tips: Customize the mask with subtle paintwork to enhance features like the eyes or teeth for a more realistic look.

Footwear and Gloves: Completing the Look

  • What You Need: Turquoise Waterproof Shoe Covers, Turquoise Satin Gloves.
  • How to Do It: The shoe covers should fit over your regular shoes, transforming them to match Sans' distinctive boots. Pair with satin gloves for a cohesive appearance.
  • Bonus Tips: If waterproof shoe covers are unavailable, consider painting an old pair of shoes with waterproof paint.

Accessorizing Your Costume

  • What You Need: Thematic Accessories like a toy bone or an in-character item.
  • How to Do It: Choose accessories that are iconic to the character, like a toy bone, to enhance the overall effect of the costume.
  • Bonus Tips: DIY your accessories for a personalized touch. Be creative and think of items that would fit Blueberry Sans' playful personality.

Assembling a Blueberry Sans costume requires attention to detail and creativity. From the base attire to the defining mask and colorful accents, each element plays a crucial role in bringing this beloved character to life. Remember, the key is in the details, so take your time to get each component just right.

Blueberry Sans Cosplay

Blueberry Sans Cosplay

Dressing as Blueberry Sans is only half the fun; acting like him truly brings the character to life. Here's how you can embody his traits and mannerisms at your Halloween party.

How to act like Blueberry Sans at the Halloween Party:

1. Blueberry Sans' Playful Demeanor

  • What To Do: Exude a playful and energetic attitude.
  • How to Do It: Engage with others in a lighthearted manner, crack jokes, and show enthusiasm in conversations.
  • Bonus Tips: Practice some of Sans' well-known puns or jokes to share with partygoers.

2. His Animated Expressions

  • What To Do: Emphasize animated facial expressions.
  • How to Do It: Even though you're wearing a mask, use body language to express emotions vividly. Widen your stance for surprise or lean forward for intrigue.
  • Bonus Tips: Watch clips of Sans to observe how he uses his body to express emotions.

3. Interaction with Others

  • What To Do: Mimic Sans' friendly and approachable nature.
  • How to Do It: Initiate conversations, be engaging, and show genuine interest in others' stories.
  • Bonus Tips: Stay in character, but ensure your interactions are always positive and respectful.

4. Movement and Posture

  • What To Do: Adopt Sans' unique movement style.
  • How to Do It: Move with a relaxed and casual gait, occasionally shifting into playful jumps or animated gestures.
  • Bonus Tips: Avoid stiff movements; Sans is known for his laid-back yet lively presence.

5. In-Character Responses

  • What To Do: Respond to situations as Blueberry Sans would.
  • How to Do It: Think about how Sans would react in different scenarios and try to mimic that. Use humor and wit in your responses.
  • Bonus Tips: Prepare some classic Sans responses or catchphrases to use during conversations.

To successfully act like Blueberry Sans at a Halloween party, blend his playful demeanor with animated expressions and friendly interactions. Remember, it's about having fun and staying true to the character's essence. Let your personality shine through while staying in character, and you'll be the life of the party!

Couple and Group Costume Ideas

Partnering your Blueberry Sans costume with other characters can create a memorable and dynamic Halloween group. Here are some creative ideas for couple and group costumes that complement Blueberry Sans.

Couple Costume Ideas

Blueberry Sans and UnderSwap Papyrus

  • Concept: Pair Blueberry Sans with his brother, UnderSwap Papyrus, for a classic sibling duo.
  • Costume Suggestions: UnderSwap Papyrus costume can include a white tank top, red scarf, and a combat-style attire.
  • Bonus Points: Emphasize the contrast in personalities with playful interactions between the two.

Blueberry Sans and a Classic Undertale Character

  • Concept: Partner Blueberry Sans with a character from the classic Undertale universe, like Frisk or Chara.
  • Costume Suggestions: For Frisk, a blue and purple striped sweater with brown shorts; for Chara, a green and yellow sweater with brown pants.
  • Bonus Points: Create a story of worlds colliding and characters meeting across different universes.

Group Costume Ideas

Undertale/UnderSwap Group

  • Concept: Create a group costume featuring characters from both Undertale and UnderSwap.
  • Costume Suggestions: Include characters like Flowey, Ink Sans, Undyne, and Asriel, each with their unique attire from the games.
  • Bonus Points: Coordinate to showcase key moments or interactions from the games.

Video Game Icons Group

  • Concept: Group up as iconic characters from various video games.
  • Costume Suggestions: Combine characters like Link, Bowsette, Mario, Diddy Kong, Sonic, and others, along with Blueberry Sans.
  • Bonus Points: Create a theme of 'video game night' and engage in playful mock battles.

Family Costume Ideas

For Families with Young Kids

  • Concept: Make a family-friendly Undertale-themed group costume.
  • Costume Suggestions: Parents can dress as Blueberry Sans and Toriel, while kids can be Frisk or Chara.
  • Bonus Points: Add elements like toy swords or heart containers to make it more interactive for kids.

For All Adult Families

  • Concept: An all-adult group can explore more elaborate Undertale characters.
  • Costume Suggestions: Include characters like Mettaton, Asgore, and Alphys for a diverse cast.
  • Bonus Points: Create a short skit or act out scenes from the game for added fun.

Whether you're pairing up as a couple or assembling a group, these costume ideas alongside Blueberry Sans are sure to make a striking impression. Remember, the key is in the details and interaction between characters to bring the world of Undertale and UnderSwap to life.

About Blueberry Sans

Dive into the intriguing world of Blueberry Sans, a standout character from the Undertale Alternate Universe, UnderSwap. Let's explore his unique role, personality, appearance, and the cultural impact he's made in the gaming community.

Character Overview

  • Role in UnderSwap: In this alternate universe, Blueberry Sans embodies characteristics akin to Papyrus from the original Undertale, taking on a more energetic and optimistic role.

Background and Personality Traits

  • Personality: Unlike his Undertale counterpart, Blueberry Sans in UnderSwap is more animated, outgoing, and enthusiastic. He's known for his upbeat attitude and a strong sense of justice.
  • Appearance: Blueberry Sans is a short and somewhat overweight skeleton. He sports a large mouth, tall nose, eyebrows, and distinctive blue eyes. His attire includes a ripped scarf, a cape, grey armor with cyan trims, and a white shirt, paired with dark blue pants and blue boots.

Role in the Story

  • In UnderSwap: Blueberry Sans plays a more active and pivotal role compared to his Undertale version. He sets up puzzles and challenges, much like Papyrus in Undertale.
  • Interaction with Other Characters: His relationship dynamics are reversed in UnderSwap. He shows annoyance towards his brother Papyrus's laid-back attitude and engages actively with other characters.

Cultural Impact

  • Influence in Gaming Community: Blueberry Sans has become a beloved character in the Undertale community, inspiring fan art, cosplay, and fanfiction.
  • Representation of Alternate Universes: His character is a testament to the creativity of fan-made alternate universes, showing how reinterpretations can add depth and new perspectives to existing characters.


Embracing the energetic spirit of Blueberry Sans from UnderSwap, this comprehensive costume guide offers an exciting journey into character portrayal. From meticulously selecting your costume elements to adopting his lively persona, and exploring creative group costume concepts, you're now fully equipped to bring this beloved character to life. Whether at a Halloween party or a cosplay event, your Blueberry Sans costume is sure to be a standout homage to the vibrant world of UnderSwap.

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