Gengar Costume
Embrace your mischievous side as the ultimate purple Ghost-type Pokémon.
First introduced in Pokémon Red and Blue, Gengar is one of the franchise's most beloved and mischievous Ghost-type Pokémon. A Gengar costume is incredibly popular for its cozy, low-effort appeal, typically featuring a deep purple palette, spiked back ridges, and a wide, sinister red-eyed grin. Whether you choose a comfortable fleece onesie or build a custom cosplay, this guide has you covered.
- Difficulty
- Easy
- Time
- ~15 min
- Budget
- $30–80
Try it on
See yourself as Gengar
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 Gengar costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Gengar costume — one box instead of 4 pieces.
Gengar Hooded Jumpsuit
A deep purple fleece or polyester union suit featuring Gengar's printed red eyes, wide toothy grin, pointed ears on the hood, and soft spikes down the back.
DIY: Use a plain oversized purple hooded sweatshirt and sweatpants, then sew on purple felt triangles for the ears and back spikes.
Felt Face Details (for DIY)
Red, white, and black stiff felt sheets to cut out Gengar's signature wide, mischievous eyes and toothy grin if making your own hood.
DIY: Cut out the eyes and teeth from felt and fabric glue or sew them directly onto a purple hood.
Purple Gloves
Simple purple jersey or fleece gloves to match the body color and mimic Gengar's three-toed hands.
DIY: Cut the fingers off old purple gloves or wear simple purple mittens.
Purple Sneakers or Slippers
Comfortable purple canvas shoes or plush purple slippers to complete the monochromatic look.
DIY: Wear plain black shoes you already own to blend into the shadows.
Rather not assemble it? See ready-made Gengar costumes at Spirit Halloween ↗
How to put it together
- 1
Step into the purple Gengar hooded jumpsuit and zip or button it up securely.
- 2
Pull the hood over your head, ensuring the pointed ears sit upright and the printed face is visible.
- 3
Put on the matching purple gloves to cover your hands.
- 4
Lace up your purple sneakers or slip into plush purple slippers.
- 5
Adjust the soft spikes along the back and tail of the jumpsuit so they stand out correctly.
Makeup & hair
Since the jumpsuit hood features Gengar's face, makeup is optional. If you want to go extra, apply purple face paint around your eyes or wear red costume contact lenses to mimic Gengar's glowing red gaze.
Gengar for couples, groups, kids & more
- couples
- Pair up with Clefable for a classic fan-theory pairing (Gengar as Clefable's shadow), or partner with Ash Ketchum.
- group
- Form a Ghost-type Pokémon squad with Gastly and Haunter, or a classic Kanto trio with Pikachu and Charizard.
- kids
- Available in cozy fleece onesies with easy zipper fronts and soft fabric spikes.
- Plus size
- Fleece union suits are naturally loose-fitting and oversized, making them highly comfortable and size-inclusive.
- pet
- A purple dog hoodie with soft felt spikes sewn along the spine.
Tips
- Onesie costumes can get warm indoors, so wear lightweight, breathable layers like a t-shirt and shorts underneath.
- For outdoor trick-or-treating, the fleece material provides excellent warmth against chilly autumn weather.
- To make the back spikes stand up better on a DIY version, stuff them lightly with polyester fiberfill before sewing them shut.
- Strike a mischievous pose with bent knees, clawed hands, and a wide grin for the perfect in-character photo.
Gengar costume FAQ
- What do you wear under a Gengar onesie?
- Wear light, breathable clothing like a t-shirt and shorts or leggings, as fleece jumpsuits can trap heat quickly.
- How do I make a DIY Gengar face?
- Cut two large, semi-circular red eyes with black pupils and a wide, crescent-shaped mouth with white block teeth out of felt sheets, then fabric-glue them to a purple hood.
- Is a Gengar costume warm enough for cold weather?
- Yes, most commercial Gengar costumes are made of thick polyester fleece, making them excellent for cold Halloween nights.
Did you know? Gengar is famously the subject of a popular fan theory suggesting it is actually the shadow of Clefable, given their remarkably similar body shapes and contrasting types.