Mega Man 4 (Prototype)
Nintendo Entertainment System · 1991
About this game
Wily is declared as having been killed by the explosion of Gamma.
A year passes and Rock, Roll, and Dr.
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Light are living in peace.
But soon, the peace is broken by a new threat.
A supposed colleague of Dr.
Light's, the mysterious Dr.
Cossack, has sent out eight of his own Robot Masters to find Mega Man, whom Cossack blames for the kidnapping of his daughter.
Mega Man, hoping to clear his name, sets out to find Dr.
Cossack, this time armed with a powerful new weapon: the Mega Buster.
Mega Man must now battle with Cossack's fiendish Robot Masters and find Cossack's daughter before it's too late.
Gameplay-wise, this installment is similar to the previous game in the series.
Like before, Mega Man has to complete eight stages, defeating their robotic bosses and acquiring their weapons as a reward.
He retains his abilities to jump, shoot, climb, and slide.
His dog can be transformed to access different area types.
A new addition is the Mega Buster weapon, which can be charged to produce powerful shots.
About Nintendo Entertainment System
The Nintendo Entertainment System (1983 in Japan, 1985 in the West) revived the North American video game industry after the 1983 crash and established conventions — cartridges, licensing seals, save systems — that shaped the industry for decades. NES collecting is one of the most established retro markets: common titles remain cheap, but a well-known handful of low-print-run games (many from smaller third-party publishers) are among the most expensive video games in existence.
Gamevaro tracks Mega Man 4 (Prototype) for Nintendo Entertainment System with separate market values for loose, complete-in-box (CIB) and factory-sealed copies, sourced from real eBay sales. Prices also vary by region — PAL, NTSC-U and NTSC-J releases of the same game often sell for different amounts due to print run sizes and regional collector demand.
Adding Mega Man 4 (Prototype) to a Gamevaro collection takes seconds — search by title or scan the box barcode, and the app fills in cover art, release details and current pricing automatically. This NES release dates back to 1991.
Market values by condition
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Rarity & condition
No market sales have been tracked yet for Mega Man 4 (Prototype) — this could mean it rarely changes hands, or simply that Gamevaro hasn't recorded a sale for it yet. Be the first to add it to your collection.
Complete-in-box (CIB) copies typically command a premium over loose cartridges/discs because the original box and manual are more fragile and get discarded or damaged over time — fewer complete sets survive.
Frequently asked questions
How much is Mega Man 4 (Prototype) worth?
Gamevaro hasn't tracked a market sale for Mega Man 4 (Prototype) (Nintendo Entertainment System) yet, so no current value is available. Prices are sourced from real marketplace sales, and this page will update automatically once sales data comes in.
Is Mega Man 4 (Prototype) rare?
No market sales have been tracked yet for Mega Man 4 (Prototype), which could mean it rarely changes hands or that Gamevaro simply hasn't recorded a sale for it yet.
What's the difference between loose, CIB and sealed for Mega Man 4 (Prototype)?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. These are tracked as separate market values because the price gap between them can be significant, especially for older releases.
Ratings & Reviews
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