Skip to content

Facebook
Instagram
X (Twitter)

(844) 994-2637 or Submit a Support Ticket

Country/region

Search

Featured Brands
Console Platforms
Pre-Orders
Support
Community
- News Letter
- Affilliates and Partnerss
Enter the Vault

Country/region

Search

X (Twitter)
Facebook
Instagram

Featured Brands
Console Platforms
Pre-Orders
Support
Community
- News Letter
- Affilliates and Partnerss
Enter the Vault

Country/region

Search

Search

Item added to your cart

View cart

Collection: NES Upgrades

Enhance your classic gaming experience with our NES Upgrades collection. At CastleMania Games, we offer a curated selection of premium accessories and games designed to elevate your Nintendo Entertainment System. Rediscover the joy of retro gaming with enhanced reliability and superior gameplay.

Sort by:

24 products

Filter:

Availability (0)

Availability

In stock (15 products)
Out of stock (10 products)

Shop Games (0)

Shop Games

Yes (7 products)
No (3 products)

Shop By Console (0)

Shop By Console

NES (Nintendo Entertainment System (13 products)
SNES (Super Nintendo) (1 product)

Shop Accessories (0)

Shop Accessories

Cartridge Adapters (1 product)
Controllers (2 products)
Controller Adapters (2 products)
Development and Testing (2 products)
Replacement Housing (1 product)

Filter and sort Filter

Filter and sort

Filter

24 products

Availability

In stock (15 products)
Out of stock (10 products)

Clear

Shop Games

Yes (7 products)
No (3 products)

Clear

Shop By Console

NES (Nintendo Entertainment System (13 products)
SNES (Super Nintendo) (1 products)

Clear

Shop Accessories

Cartridge Adapters (1 products)
Controllers (2 products)
Controller Adapters (2 products)
Development and Testing (2 products)
Replacement Housing (1 products)

Clear

Sort by:

Remove all

24 products

RetroN 1 HD Gaming Console for the NES

RetroN 1 HD Gaming Console for the NES

Regular price $39.99 USD

Regular price Sale price $39.99 USD
Unit price per
Retro-Bit Origin8 2.4 GHz Wireless Controller

Retro-Bit Origin8 2.4 GHz Wireless Controller

1 total reviews

Regular price $24.99 USD

Regular price Sale price $24.99 USD
Unit price per
Retro Game Restore NES Replacement Housings

Retro Game Restore NES Replacement Housings

1 total reviews

Regular price $119.99 USD

Regular price Sale price $119.99 USD
Unit price per
RetroTime NES HUB Bluetooth for NES

RetroTime NES HUB Bluetooth for NES

Regular price $59.99 USD

Regular price Sale price $59.99 USD
Unit price per
RetroTime SNES Add-On Adapter for NES HUB

RetroTime SNES Add-On Adapter for NES HUB

Regular price $29.99 USD

Regular price Sale price $29.99 USD
Unit price per
Cadet Premium BT Controller - NES

Cadet Premium BT Controller - NES

Regular price $32.99 USD

Regular price Sale price $32.99 USD
Unit price per
R.C. Pro-Am II- NES® - Collector’s Edition

Sold out

R.C. Pro-Am II- NES® - Collector’s Edition

Regular price $59.99 USD

Regular price Sale price $59.99 USD
Unit price per

Sold out
Battletoads & Double Dragon (NES)

Sold out

Battletoads & Double Dragon (NES)

Regular price $59.99 USD

Regular price Sale price $59.99 USD
Unit price per

Sold out
Rod Land - Collector’s Edition for NES®

Sold out

Rod Land - Collector’s Edition for NES®

1 total reviews

Regular price $59.99 USD

Regular price Sale price $59.99 USD
Unit price per

Sold out
Hammerin’ Harry - Concrete Collection

Sold out

Hammerin’ Harry - Concrete Collection

1 total reviews

Regular price $99.99 USD

Regular price Sale price $99.99 USD
Unit price per

Sold out
Hammerin’ Harry Collector's Edition

Hammerin’ Harry Collector's Edition

Regular price $59.99 USD

Regular price Sale price $59.99 USD
Unit price per
Hammerin’ Harry 2: Dan the Red Strikes Back Collector's Edition

Hammerin’ Harry 2: Dan the Red Strikes Back Collector's Edition

Regular price $59.99 USD

Regular price Sale price $59.99 USD
Unit price per
Little Medusa - Complete In Box With Manual (SNES)

Sale

Little Medusa - Complete In Box With Manual (SNES)

Regular price $39.99 USD

Regular price ~~$59.99 USD~~ Sale price $39.99 USD
Unit price per

Sale
REKNUM - Complete In Box With Manual (NES)

Sold out

REKNUM - Complete In Box With Manual (NES)

Regular price $59.99 USD

Regular price Sale price $59.99 USD
Unit price per

Sold out
Project Blue - Complete In Box With Manual (NES)

Sold out

Project Blue - Complete In Box With Manual (NES)

Regular price $59.99 USD

Regular price Sale price $59.99 USD
Unit price per

Sold out
MultiDude - Complete In Box With Manual (NES)

Sale

MultiDude - Complete In Box With Manual (NES)

Regular price $39.99 USD

Regular price ~~$59.99 USD~~ Sale price $39.99 USD
Unit price per

Sale

1
2

Quick links

Contact Us
FAQ
Reviews
Shipping Policy
Returns
Refund Policy
Partners
Terms of Service
Privacy Policy
Do not sell my personal information

Subscribe to our emails

Email

Facebook
Instagram
X (Twitter)

Country/region

Search

Payment methods

© 2025, CastleMania Games Powered by Shopify

Choosing a selection results in a full page refresh.
Opens in a new window.

Your are successfully subscribed for email notifications.

✖

Notify me when available

We will send you a notification as soon as this product is available again.

Do you want to get recurring notifications?

Your email is required

We don't share your email with anybody

x