---
title: "Derpy Mr. Blue Dude — Roblox UGC Limited"
description: "Derpy Mr. Blue Dude is a Roblox UGC Limited (Hat) by StarMarine614. RAP 411 R$."
url: "https://rbxinvest.com/item/13073689824"
type: "roblox-limited-item"
asset_id: "13073689824"
item_type: "ugc_limited"
asset_type: "Hat"
creator: "StarMarine614"
creator_id: "486309"
rap: 411
lowest_resale_price: 110
original_price: 500
total_quantity: 250
copies_remaining: 130
sales_30d: 0
created_on: "2023-04-10"
currency: "ROBUX"
data_as_of: "September 16, 2026"
source: "RBX Invest"
---

# Derpy Mr. Blue Dude

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Derpy Mr. Blue Dude is a Roblox UGC Limited hat by StarMarine614. 130 of 250 original copies are still on sale from the creator, about 48% of the stock claimed. It was originally on sale at 500 R$. Resale listings start at 110 R$, about 73% below its RAP of 411 R$. RBX Invest has tracked no sales of it in the past 30 days. It was created on Roblox on Apr 10, 2023. StarMarine614 is a Roblox group rather than an individual user. RAP is Recent Average Price, the Roblox-published rolling average of recent sale prices. Figures as of September 16, 2026.

| Field | Value |
| --- | --- |
| RAP | 411 R$ |
| Lowest resale | 110 R$ |
| Original price | 500 R$ |
| Total quantity | 250 |
| Original copies remaining | 130 |
| Sales (last 30 days) | 0 |
| Created on Roblox | Apr 10, 2023 |
| Favorites | 1,715 |
| Item type | UGC Limited |
| Category | Hat |
| Creator | StarMarine614 |

## Item description

This is the description text Roblox carries for the item, quoted verbatim:

> The rarest Derpy Dude of all.
> 
> More items: https://www.roblox.com/catalog?Category=1&CreatorName=StarRez%20UGC&CreatorType=Group&salesTypeFilter=1

## Collections this item belongs to

- [UGC Limited Hats — Prices, RAP & Rarity of Every Tradable Hat](https://rbxinvest.com/collections/ugc-limited-hats) (HTML only)
- [Roblox Limiteds under 1,000 Copies — Scarce but Tradable](https://rbxinvest.com/collections/limiteds-under-1000-copies) (HTML only)
- [Roblox Limiteds under 500 Robux — Live Budget Price List](https://rbxinvest.com/collections/limiteds-under-500) (HTML only)
- [Roblox Limiteds under 1,000 Robux — Mid-Tier Price List](https://rbxinvest.com/collections/limiteds-under-1000) (HTML only)

## More Limiteds by StarMarine614

- [Midnight Blue Celestial Crown — RAP 3,362 R$](https://rbxinvest.com/item/13327136136.md)
- [Midnight Master Sword — RAP 2,378 R$](https://rbxinvest.com/item/13196306816.md)
- [Inferno Master Sword — RAP 2,274 R$](https://rbxinvest.com/item/13154312194.md)
- [Magenta Celestial Crown — RAP 1,940 R$](https://rbxinvest.com/item/13261935070.md)
- [Gold Skeleton Bunny Backpack — RAP 1,644 R$](https://rbxinvest.com/item/13233848408.md)
- [Amethyst Celestial Crown — RAP 1,039 R$](https://rbxinvest.com/item/13252938695.md)
- [Gold Celestial Crown \[Limited!\] — RAP 776 R$](https://rbxinvest.com/item/13048398483.md)
- [Diamond Celestial Crown — RAP 582 R$](https://rbxinvest.com/item/13143367286.md)
- [Gold Preppy Face Star Stickers — RAP 414 R$](https://rbxinvest.com/item/13289775456.md)
- [Diamond Preppy Face Star Stickers — RAP 315 R$](https://rbxinvest.com/item/13280792447.md)
- [Golden Master Sword — RAP 293 R$](https://rbxinvest.com/item/13185863020.md)
- [Underworld Master Sword — RAP 263 R$](https://rbxinvest.com/item/13129646666.md)

## Limiteds at a similar price

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- [Retro Evil Buddy — RAP 530 R$](https://rbxinvest.com/item/17549816543.md)
- [Dark Classic Fedora — RAP 530 R$](https://rbxinvest.com/item/86766276872842.md)
- [Festive Candy Cane Scimitar — RAP 530 R$](https://rbxinvest.com/item/70674542655198.md)
- [Undead Fishy — RAP 530 R$](https://rbxinvest.com/item/18569278731.md)
- [Green Galaxy Staff — RAP 530 R$](https://rbxinvest.com/item/15505984221.md)
- [Black Star Crown — RAP 530 R$](https://rbxinvest.com/item/135809917259122.md)

## Related pages

- [StarMarine614 — full catalog](https://rbxinvest.com/creator/486309.md)
- [Roblox Limiteds leaderboard](https://rbxinvest.com/items.md)
- [Browse Limiteds by category, price, and rarity](https://rbxinvest.com/collections) (HTML only)

---

Source: [RBX Invest](https://rbxinvest.com/item/13073689824) — independent Roblox Limited analytics, not affiliated with Roblox Corporation. RAP and reseller figures are read from Roblox and refreshed continuously; treat them as recent, not live.