Hidden Gems of NES: 5 Underrated Retro Games Every Collector Should Know

The Nintendo Entertainment System (NES) revolutionized gaming, and many of its iconic titles remain at the top of collectors' lists today. However, some hidden gems from the NES library often fly under the radar. These lesser-known titles offer unique gameplay, memorable characters, and a nostalgic experience that modern retro gaming collectors are now seeking out for their rarity and charm. The thrill of discovering these hidden gems is one of the joys of building a retro gaming collection.

In this guide, we’ll spotlight five overlooked NES games that deserve a place in your collection. Each of these titles has a fascinating story behind its creation, and their ongoing demand proves their worth. You’ll often find them fetching high prices on online marketplaces or even popping up at local retro-gaming conventions. Coolection.com keeps a close watch on these special NES games. We believe these five titles stand out for their scarcity, fun gameplay, and lasting appeal.

5 Hidden NES Gems Worth Adding to Your Collection

Gargoyle’s Quest II - A Demonic Journey

Year Released: 1992
Developer: Capcom

Gargoyle’s Quest II takes the Gargoyle’s Quest formula from the Game Boy and refines it for the NES, offering players the chance to control Firebrand, a small demon with the ability to fly and launch projectiles. The combination of platforming and RPG elements makes this game unique compared to typical NES titles. With its limited distribution, many missed it upon release, which only increased its rarity over time.

The game pushed the NES to its graphical limits, delivering impressive stage designs and a darker, more demonic theme compared to other NES offerings. Finding early copies in good condition can be challenging, especially with the box art, which is difficult to locate in pristine form.

Pro Tip: If you’re lucky, you may find a loose copy of Gargoyle’s Quest II. However, complete-in-box versions are much rarer. Check Coolection.com for up-to-date pricing and availability.

DuckTales 2 - Quacking Up a Storm

Year Released: 1993
Developer: Capcom

While DuckTales was a success, its sequel, DuckTales 2, suffered from a limited release due to the NES nearing the end of its lifecycle. Many fans had already moved on to newer systems, which hurt the game's initial sales. But today, collectors value DuckTales 2 for its refined controls, vibrant stages, and the inclusion of beloved Disney characters.

The game improves upon its predecessor, introducing new puzzle segments alongside the iconic pogo jump mechanic. Hidden treasures scattered throughout the levels require careful thought, making the game a highly replayable experience. Due to its scarcity, mint-condition copies are highly sought after, especially if the manual is included.

Pro Tip: This game tends to sell out quickly, so if you find a complete set, act fast. The value can soar, especially for collectors of Disney and platformer games. Check for updates on Coolection.com to find availability.

Mega Man 5 - A Blue Bomber Classic

Year Released: 1992
Developer: Capcom

Mega Man 5 arrived at a time when the series was already prolific, yet it didn't receive the attention it deserved. Released near the end of the NES’s life cycle, the game features new stage themes, boss fights, and a fantastic soundtrack. With fewer copies produced, it’s now considered a must-have for collectors.

Despite its late release, Mega Man 5 builds upon the franchise’s formula with subtle refinements, such as challenging new bosses like Gravity Man and Gyro Man. Many early adopters played the game heavily, leaving copies in worn condition. As a result, finding complete sets in top condition has become a rare find.

Pro Tip: Keep an eye out for complete sets, as they are much rarer than loose carts. The bold and eye-catching box art is highly desirable, so check Coolection.com for up-to-date pricing.

Dragon Warrior IV - The RPG Powerhouse

Year Released: 1992
Developer: Chunsoft / Enix

As one of the most expansive RPGs on the NES, Dragon Warrior IV stands out for its unique structure. The game is divided into several chapters, each following different heroes before they eventually join forces. This narrative structure, combined with varied gameplay, set it apart from many simpler RPGs of the era.

Though sales were decent, many casual players missed out on this gem, which makes it even more valuable today. Collectors prize it for its ability to push the NES hardware to its limits, with a detailed storyline and advanced game mechanics. Complete-in-box (CIB) copies with the original maps or manual can command premium prices.

Pro Tip: Look for complete sets, as they can become extremely valuable, especially if all original inserts are intact. If you spot one in near-mint condition, don’t hesitate to secure it. Visit Coolection.com for the latest availability.

Bubble Bobble Part 2 - The Forgotten Sequel

Year Released: 1993
Developer: Taito

While many gamers remember the original Bubble Bobble, its sequel, Bubble Bobble Part 2, often gets overlooked. Released near the end of the NES era, its limited distribution has made it a hidden gem among collectors. The gameplay remains true to the original, where you capture enemies in bubbles, but with new power-ups and levels that elevate the experience.

Though initially underrated, Bubble Bobble Part 2 has since gained recognition for its co-op gameplay and colorful art. As time has passed, the rarity of the game has led to a higher demand among retro gamers. Complete-in-box copies can fetch significant prices, especially when the box is in good condition.

Pro Tip: If you find a mint-condition version with the box intact, expect to pay a premium price. Keep an eye on stock updates at Coolection.com for potential listings.

Collector’s Tips for NES Games

Authenticity Checks:
When purchasing NES games, be sure to verify their authenticity. Check the label font and the print quality—counterfeit games often have blurry or misaligned text. Pay attention to the screws—original NES cartridges use “five-star” screws, not the generic Philips or hex screws. If possible, check the circuit board underneath the label for official markings.

Condition Checks:
Over time, labels can peel or fade, and boxes may become dented. Manuals are often the first to tear. A near-mint copy might cost more, but it will hold better long-term value. Be sure to inspect photos and confirm the game’s condition before purchasing.

Storage & Maintenance:
To protect your NES cartridges, store them in protective sleeves or plastic cases. Keep them in a cool, dry place and clean the contacts with isopropyl alcohol and a cotton swab. Regularly check for dust or corrosion.

Why These Hidden NES Gems Matter?

The five NES games highlighted here—Gargoyle’s Quest II, DuckTales 2, Mega Man 5, Dragon Warrior IV, and Bubble Bobble Part 2—are essential for any retro-gaming collection. Their scarcity, innovative gameplay, and nostalgic appeal make them treasures worth hunting for. Each game adds a unique flavor to your collection, whether you're chasing nostalgia, collecting rare finds, or simply enjoying a fun piece of gaming history.

Pro Tip: Check Coolection.com for stock updates and browse our collection of retro games to add these sought-after NES gems to your shelf!