Fireboy and Watergirl Costume
The ultimate cooperative puzzle duo brought to life for couples or friends.
Based on the classic cooperative flash game, Fireboy and Watergirl are the ultimate elemental duo. This costume is a massive hit for couples or best friends who want a nostalgic, recognizable, and easy-to-assemble look. The outfits rely on vibrant red and blue color blocking, elemental hair styling, and iconic keyboard arrow/WASD details.
- Difficulty
- Easy
- Time
- ~45 min
- Budget
- $30–80
Try it on
See yourself as Fireboy and Watergirl
One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.
One render, $1. No account needed — if it fails you're not charged. Pricing.
Your photo is sent to Google's Gemini API to make the render and isn't used for training. Renders are AI-generated and labelled.
Want a different costume on this photo, or a whole group in costume? Open the Try-On Studio.
What you need for a Fireboy and Watergirl costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Fireboy and Watergirl costume — one box instead of 6 pieces.
Fireboy Red Base
A solid red long-sleeve shirt, hoodie, or fitted bodysuit.
DIY: Use a plain red sweatshirt you already own.
Watergirl Blue Base
A solid bright blue long-sleeve shirt, hoodie, or fitted bodysuit.
DIY: Use a plain bright blue sweatshirt or long-sleeve tee.
Matching Pants
Solid black leggings, jeans, or joggers for both characters to keep the focus on the colorful tops.
DIY: Wear any plain black pants or leggings from your closet.
Keyboard Symbol Badges
White felt or cardstock cutouts of the WASD keys (for Watergirl) and Arrow keys (for Fireboy) pinned to the chests.
DIY: Cut the key shapes out of white paper or cardboard and draw the letters/arrows with a black marker.
Fireboy Hair Styling
Temporary red hair spray or a spiked red cosplay wig shaped to look like flames.
DIY: Style your hair upward with strong-hold gel and dust with red chalk or temporary spray.
Watergirl Hair Styling
Temporary blue hair spray or a bright blue wig styled into a high ponytail resembling a water droplet.
DIY: Put your hair in a high ponytail and use temporary blue hair spray.
Rather not assemble it? See ready-made Fireboy and Watergirl costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the solid black pants or leggings to establish the neutral base.
- 2
Have the Fireboy partner put on the red top, and the Watergirl partner put on the blue top.
- 3
Cut out square key shapes from white felt or cardstock. Draw 'W, A, S, D' on four squares for Watergirl, and arrow symbols on four squares for Fireboy. Pin or stick them to the center of the shirts.
- 4
Style Fireboy's hair upward into flame-like spikes using strong gel, then apply red temporary hair spray.
- 5
Style Watergirl's hair into a high, smooth ponytail, then apply blue temporary hair spray.
- 6
Apply optional matching face paint or colored eyeshadow (red for Fireboy, blue for Watergirl) to complete the elemental look.
Makeup & hair
Fireboy needs spiked-up hair colored bright red, while Watergirl needs a sleek high ponytail colored bright blue. Keep makeup simple with matching red and blue eyeshadow or face glitter accents.
Fireboy and Watergirl for couples, groups, kids & more
- couples
- One partner goes as Fireboy (red) and the other as Watergirl (blue) for the ultimate cooperative duo.
- group
- Add a third friend dressed as a green 'Acid Pool' using a green outfit and warning signs.
- kids
- Use comfortable red and blue cotton pajamas with felt keyboard symbols fabric-glued to the chest.
- Plus size
- Both bases can easily be substituted with oversized red and blue hoodies for a comfortable, relaxed fit.
- pet
- Dress a pet in a simple red or blue pet tee to match one of the characters.
Tips
- Use high-quality temporary hair color spray that washes out easily in the shower.
- Carry a cardboard cutout of a game lever or a red/blue gem as a fun, interactive photo prop.
- Keep the pants solid black so the bright red and blue tops stand out clearly in photos.
Fireboy and Watergirl costume FAQ
- What do Fireboy and Watergirl wear?
- Fireboy wears a solid bright red top with flame-styled red hair, while Watergirl wears a solid bright blue top with a blue ponytail. Both typically wear neutral black pants.
- How do you make the keyboard symbols for the costume?
- Cut square shapes out of white felt or cardstock. Use a thick black marker to draw 'W, A, S, D' for Watergirl and the arrow keys for Fireboy, then safety pin them to your shirts.
- Is this a good last-minute couples costume?
- Yes, it is incredibly easy to put together using basic red and blue hoodies, black pants, and temporary hair spray.
Did you know? Fireboy and Watergirl debuted in 2009 in 'The Forest Temple' and became one of the most popular cooperative flash games of all time, loved for requiring teamwork to solve puzzles.