Unfinished Dr. Mario Nintendo NES Prototype 'Virus' Discovered & Downloadable ROM Released Online

Unfinished-Dr-Mario-Nintendo-NES-Prototype-Virus-Discovered-Downloadable-ROM-Released-OnlineDr. Mario was a runaway success on both the Nintendo NES and Game Boy, but did you know its original name was Virus? An unfinished and varying version of this 1990 Germ-em-up has surfaced online after a recent discovery in the last place you'd expect to find a prototype - a Nintendo PlayChoice-10 arcade machine.

The PlayChoice-10, for those unfamiliar with it, was Nintendo's attempt to bring their hugely successful NES line up to the arcades. With the capacity to hold up to ten different arcade adapted NES games, players would insert money in exchange for playing time on their game of choice.

So why on earth would an unfinished Nintendo NES game appear outside of Japan in one of Nintendo's arcade machines?

Prototype guru of Lost Levels, Frank Cifaldi, was quick to point out that the Nintendo-owned Chuck E. Cheese restaurants dotted around Seattle (which held these PlayChoice-10 cabinets) were once used to test upcoming Nintendo NES games during development. While this isn't definitive evidence, it might explain the existence of the PlayChoice-10 version.

A detailed comparison of both this prototype version and the retail release of Dr Mario has been posted online, accompanied by a downloadable ROM file of Virus, at Dream and Friends.

Dr. Mario Prototype 'Virus' (Nintendo NES) Gameplay Video

Link: Download Dr. Mario Prototype 'Virus' (Nintendo NES) ROM


Last Updated ( 28 October 2012 )  

Cauterize

Better known as Adam offline, Cauterize is one of RetroCollect's final bosses with an unhealthy addiction to pixels. When he's not out searching the web for the latest retro gaming news or creating content for RetroCollect, he'll will most likely be found working on his Sensible Soccer skills.

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Comments 

(Link to this comment) NES4Life 2012-10-30 13:15
I have a NES Playchoice 10 but sadly it doesn't contain any prototypes :sad:
When I finally get it working again i'll certainly be ragging out Contra for all its worth - who'll be player 2?
(Link to this comment) Cauterize 2012-10-30 23:50
Quoting NES4Life:
I have a NES Playchoice 10 but sadly it doesn't contain any prototypes :sad:
When I finally get it working again i'll certainly be ragging out Contra for all its worth - who'll be player 2?

Jealous :( I'd happily be player two though!
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