Heavy Nova

From Sega Retro

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HeavyNova MCD title.png
Heavy Nova
Publisher: Micronet
System(s): Sega Mega-CD, Sega Mega Drive
Genre: Action

Number of players: 1-2
Release Date RRP Code
Sega Mega Drive
$59.99[1] 22046

Sega Mega-CD
¥6,800 T-22014

Heavy Nova (ヘビーノバ) 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.

Production credits

  • Director: Shaka
  • Programming: Shaka, Dampei, Wns, Foma, Azy Mk II, Ikeda
  • Design: Zivo, Nao, Man Chan
  • Music: Studio River Kings, T.Iijima, Shaka
  • Special Thanks: Bignet U.S.A., Tatsurou, Toshirou
  • Producer: Akihiko Murakami

'1991 Micronet

Magazine articles

Main article: Heavy Nova/Magazine articles.

Promotional material


SegaVisions US 07.pdf

Print advert in
Sega Visions (US) #7: "Winter 1991/1992" (1991-xx-xx)

EGM US 030.pdf

Print advert in
Electronic Gaming Monthly (US) #30: "January 1992" (199x-xx-xx)

EGM US 032.pdfEGM US 032.pdf

Print advert in
Electronic Gaming Monthly (US) #32: "March 1992" (1992-xx-xx)

Physical scans

Mega Drive version

Sega Retro Average 
Publication Score Source
20 №7, p71
42 №3, p79
80 №32, p40[1]
49 №18, p66
54 №18, p74
Sega Mega Drive
Based on
5 reviews

Mega Drive, US
HeavyNova MD US Box.jpg
HeavyNova MD US Cart.jpg
Heavy Nova MD US Manual.pdf

Mega-CD version

Sega Retro Average 
Publication Score Source
60 №157
80 №124, p71[3]
60 №40
56 №24, p156
12 №15, p76/77
59 №2, p24/25[4]
69 №5, p52[5]
53 №1, p42
Sega Mega-CD
Based on
8 reviews

Mega-CD, JP
HeavyNova MD JP Box Back.jpgHeavyNova MD JP Box Front.jpg
HeavyNova MCD JP spinecard.jpg
HeavyNova MCD JP Disc.jpg
Heavynova mcd jp manual.pdf

Technical information

ROM dump status

System Hash Size Build Date Source Comments
Sega Mega Drive
CRC32 f6b6a9d8
MD5 74bb344107592feae3372c27e1dc1841
SHA-1 f5bda60615c7436a40b5a31a726099583ed85413
1MB 1991-07 Cartridge (US)


  1. 1.0 1.1 File:GamePro US 032.pdf, page 40
  2. File:SegaVisions US 07.pdf, page 45
  3. File:CVG UK 124.pdf, page 71
  4. File:MegaTech UK 02.pdf, page 24
  5. File:SegaPro UK 05.pdf, page 52