Heavy Nova
Heavy Nova — frequently asked questions
- What platforms is Heavy Nova on?
- Heavy Nova was released on Sharp X1, Sega Mega Drive/Genesis, Sega CD, Sharp X68000.
- When did Heavy Nova release?
- Heavy Nova was first released on December 12, 1991.
About Heavy Nova
Heavy Nova is a 1991 action game for the Sharp X68000 by Micronet. It was ported to the Sega Mega-CD as one of the system's two launch titles (the other being Wolf Team's Sol-Feace); the Mega-CD port was not released outside Japan. Micronet subsequently ported it to the Sega Mega Drive for an American release in 1992. You play as a giant mech beating up other mechs of various sizes. A punches and B kicks. Up rockets up for as long as the button is held; you will eventually come back down.
Summary via IGDB.
Game details
- Platforms
- Sharp X1, Sega Mega Drive/Genesis, Sega CD, Sharp X68000
- Developer
- Holocronet
- Publisher
- Micronet
- Game modes
- Single player, Multiplayer
- Themes
- Action, Science fiction
Details via IGDB.
Every version compared
Prices, contemporary reception and the studio credited for each release
| Platform | Year | Loose | Complete | Sealed | Period reviews | Fake risk |
|---|---|---|---|---|---|---|
| Sega GenesisDetails ↓ | 1991 | $9 | $19 | — | — | Low |
| Sega CDDetails ↓ | 1991 | $7 | $16 | $23 | 3 reviews | Low |
The cheapest way to own it loose is the Sega CD version ($7).
Also released on: Sharp X1 · Sega Mega Drive/Genesis · Sharp X68000. We haven’t priced or authenticated those versions yet.
Prices are per version and are not interchangeable, and neither are the reviews: conversions in this era were often built by a different studio than the original, so a score earned on one machine says nothing about how another plays.
Collector value & authenticity
Sega Genesis · PriceCharting sold data · Verified 2026-10-29
How often it sells
- Loose: about once a month
- Complete: about 2 times a month
- Sealed: about once a year
Sales frequency from PriceCharting's completed-sale records, as of 2026-10-29.
Price over time
- Loose
- Complete
A loose copy sold for about $2.23 in Apr 2008, $6.75 five years ago, and $8.59 as of Oct 2026.
Show as table
| Month | Loose | Complete |
|---|---|---|
| Jan 2009 | $0.90 | — |
| Jan 2010 | $0.90 | — |
| Jan 2011 | $0.99 | — |
| Jan 2012 | $1.78 | — |
| Jan 2013 | $1.32 | — |
| Jan 2014 | $4.99 | $7.99 |
| Jan 2015 | $4.95 | $5.49 |
| Jan 2016 | $6.50 | $26 |
| Jan 2017 | $7.94 | $14.99 |
| Jan 2018 | $5.85 | $11.43 |
| Jan 2019 | $4.86 | $14.01 |
| Jan 2020 | $5.86 | $14.00 |
| Jan 2021 | $5.80 | $16.11 |
| Jan 2022 | $7.75 | $22 |
| Jan 2023 | $13.44 | $23 |
| Jan 2024 | $8.95 | $22 |
| Jan 2025 | $6.00 | $20 |
| Jan 2026 | $5.80 | $24 |
| Oct 2026 | $8.59 | $18.83 |
Monthly price estimates from PriceCharting's completed-sale records, sampled quarterly, through Oct 2026.
Release record
| Territory | Date | Product number | Barcode |
|---|---|---|---|
| North America | December 1991 | T-22046 | 027479700194 |
- Region
- NA
- Released
- 1991
- Authenticity
- Low
The Sega Genesis version
A robot-fighter that mixes platform stages with one-on-one boss fights, cheap among US carts.
Heavy Nova was developed and published by Micronet, with a North American Genesis release in December 1991. You play a robot operator working toward the top rank, piloting a robot called a Heavy DOLL through platform stages in a combat training camp and then fighting other Heavy DOLLs as end-of-level bosses. Mean Machines previewed it in 1991 as a one-on-one combat game in which two robots fight.
Also on other platforms
Sega CD · X68000
Before you buy
Among US carts the loose cart sits below the middle. A complete copy means the case, cartridge and manual.
Collector value & authenticity
Sega CD · PriceCharting sold data · Verified 2026-11-02
How often it sells
- Loose: about 2 times a year
- Complete: about 2 times a year
- Sealed: about once a year
Prices marked “few sales” rest on about one recorded sale a year, so treat them as a rough guide: the next copy could sell well above or below. Expect to wait for one to come up.
Sales frequency from PriceCharting's completed-sale records, as of 2026-11-02.
Price over time
- Loose
- Complete
A loose copy sold for about $6.50 in Apr 2025, and $6.75 as of Nov 2026.
Show as table
| Month | Loose | Complete |
|---|---|---|
| Jan 2026 | $6.75 | $16.49 |
| Nov 2026 | $6.75 | $16.49 |
Monthly price estimates from PriceCharting's completed-sale records, sampled quarterly, through Nov 2026.
Release record
| Territory | Date | Product number | Barcode | MSRP |
|---|---|---|---|---|
| Japan | 12 December 1991 | T-22014 | 4957227700199 | ¥6,800 |
- Region
- JP
- Released
- 1991
- Authenticity
- Low
The Sega CD version
A robot fighter that launched with the Mega-CD in Japan and left British magazines unimpressed.
This is the Mega-CD version of Heavy Nova, published by Micronet. It came out only in Japan, on 12 December 1991, the same day the Mega-CD itself launched there. It mixes platform stages with one-on-one fights between robots, and it also appeared on the Genesis and the X68000.
Reviews in the British press were cool. Computer and Video Games, in March 1992, credited the slick animation and the sound but thought the game nothing special. Sega Pro found a fantastic introduction and little else, with poor gameplay in the one-on-one robot fights, and Mega Tech called it slow, with moves that are hard to access. MEGA's Summer Special in 1993 used the word appalling about it in passing.
What the press said at the time
| Computer + Video Games Issue 124 | March 1992 | 80 (81, 90, 78, 79) |
| MegaTech Issue 6 | May 1992 | 59% |
| Sega Pro Issue 28 | February 1994 | 34% |
“Heavy Nova certainly looks Impressive and Ihe first thing you'll see when it loads up is a beautiful animation”
“This is the Mega-CD's first beat 'em up, and a real let down it is to. The game can be played as a single player slap 'em around cum adventure, or as a two-player head to head battle.”
“A steaming great rumbler of a dollop of a mockery of a joke of a game. With about two moves with which to develop your own style of play, this is one of the worst sad, shambling, mockeries of a beat-’em-up you’ll ever have”
“A fantastic introduction, as with the majority of Mega-CD games but little else to offer. Two fighting robots in a one-on-one battle with terrible gameplay. Hardly oněmil and just about bearable.”
Also on other platforms
Genesis · X68000
Before you buy
This is the Japanese disc, so it needs a Japanese Mega-CD. Its loose price sits below the middle among the Japan-only Sega CD releases. Copies sell infrequently, so any price rests on few sales; check that the disc and case carry the same title.
Heavy Nova screenshots
Watch on YouTube
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