Shy Guy Costume
Mask up as the Mario universe's most mysterious, silent helper.
The Shy Guy is one of the most recognizable and enduring enemies from the Mario Bros franchise, beloved for its simple yet mysterious design. Choosing this costume is a fantastic way to stand out at conventions or Halloween parties with a look that is both nostalgic and highly visual. The outfit consists of a bright red hooded robe, a signature white mask with black eye cutouts, and dark purple pants.
- Difficulty
- Easy
- Time
- ~30 min
- Budget
- $35–85
Try it on
See yourself as Shy Guy
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What you need for a Shy Guy costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Shy Guy costume — one box instead of 5 pieces.
Red hooded robe or cloak
A bright red, long-sleeved hooded robe or oversized hoodie that covers the upper body down to the knees.
DIY: Use an oversized red hoodie and cut the hem to a straight line if it has ribbing.
Shy Guy mask
A flat, oval white mask with large black circular eye holes and a small circular mouth hole, secured with a black strap.
DIY: Cut the shape out of white craft foam or heavy cardstock, draw the eyes and mouth with black marker, and attach an elastic band.
Purple pants
Deep purple or violet jogger pants or scrub pants to wear underneath the robe.
DIY: Use any dark blue or black sweatpants if purple is unavailable.
Brown utility belt
A simple brown or black web belt with a gold or silver buckle to cinch the robe at the waist.
DIY: Use a standard brown leather waist belt.
Blue or purple shoes
Simple canvas slip-ons or sneakers in a deep blue or purple shade.
DIY: Wear dark blue socks over standard sneakers to mimic the shoe color.
Rather not assemble it? See ready-made Shy Guy costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the purple jogger or scrub pants.
- 2
Slip on the red hooded robe or oversized red hoodie.
- 3
Fasten the brown utility belt around your waist, over the red robe, to cinch it in place.
- 4
Put on your blue or purple canvas sneakers.
- 5
Secure the white Shy Guy mask over your face, adjusting the elastic strap for a snug fit.
- 6
Pull the red hood forward over your head so it frames the top and sides of the white mask.
Makeup & hair
No makeup or hair styling is required, as your entire head and face will be completely covered by the mask and hood.
Shy Guy for couples, groups, kids & more
- couples
- Pair up with a partner dressed as Mario, Luigi, or another Shy Guy in a alternative color like blue or pink.
- group
- Form a squad of multi-colored Shy Guys (red, blue, yellow, green, and black) for a striking group cosplay.
- kids
- Use a red youth-sized hooded sweatshirt and a lightweight plastic mask for a comfortable kid-friendly version.
- Plus size
- An oversized red fleece cloak or kaftan provides a comfortable, flowing fit for all body types.
- pet
- A simple red dog hoodie with a small felt mask attached to the hood makes for an adorable pet version.
Tips
- Ensure the eye holes on your mask are large enough for safe peripheral vision, especially if wearing it at night.
- If the mask fogs up, use anti-fog spray on the inside or widen the mouth hole slightly for ventilation.
- Wear lightweight clothing under the robe to prevent overheating during indoor events.
Shy Guy costume FAQ
- What color pants does Shy Guy wear?
- Shy Guy traditionally wears deep purple or dark blue pants beneath his red robe, paired with matching shoes.
- How do I make a DIY Shy Guy mask?
- You can easily make one by cutting a rounded oval out of thick white craft foam, cutting out two large circles for eyes and a small one for the mouth, and hot-gluing an elastic strap to the back.
- Are there different colors of Shy Guys?
- Yes! While red is the classic look, Shy Guys also appear in blue, yellow, green, pink, cyan, and black throughout the Mario games.
Did you know? Shy Guys did not actually debut in a Mario game; they first appeared in the 1987 game Yume Kōjō: Doki Doki Panic, which was later adapted and released globally as Super Mario Bros. 2.