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The human colony "Le Tau" is under attack by some strange aliens. It is the player's job to use a special starship and destroy everything which moves. Heavy Unit is a typical side-scrolling shooter with six levels filled with enemies, mid and end bosses.

Destroyed enemies may leave behind items which have beneficial effects when collected: increased speed, better weapon power, a shield, extra lives or transformation into a robot. The robot has a more powerful weapons system (laser beam and homing energy balls instead of a vulcan gun), but also a downside: its large size makes it easier to be hit by enemies or crash into the environment. If that happens, a life and all collected upgrades are lost and the ship is reset at the last checkpoint.

While the level layouts are identical in all versions, there are some minor differences in enemy placement, graphics (e.g. the Genesis version has more colours and bigger enemies) and sound.


Heavy Unit TurboGrafx-16 Title Screen
Heavy Unit TurboGrafx-16 ... and three giant, fire-breathing serpents as more or less welcoming party. Guess this one's won't be finished so soon.
Heavy Unit TurboGrafx-16 Brrrr, caterpillars made of skulls!
Heavy Unit TurboGrafx-16 Round 1-1

Promo Images

Heavy Unit Magazine Advertisement

Alternate Titles

  • "Heavy Unit: Mega Drive Special" -- Mega Drive title
  • "ヘビー・ユニット" -- PC Engine Japanese spelling
  • "ヘビーユニット メガドライブ・スペシャル" -- Mega Drive Japanese spelling

Part of the Following Group

User Reviews

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Critic Reviews

Tilt Mar, 1990 16 out of 20 80
The Games Machine (UK) Mar, 1990 77 out of 100 77
Power Play Mar, 1990 61 out of 100 61 Jan, 2008 6 out of 10 60
ASM (Aktueller Software Markt) Feb, 1990 5 out of 12 42


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haynor666 (6050) added Heavy Unit (TurboGrafx-16) on Dec 30, 2009
Other platforms contributed by ryanbus84 (36322) and Mobygamesisreanimated (11177)