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Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
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    • Castle
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    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
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  • USEFUL LINKS
    • Submit Instructions!
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    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Aquazone Aquazone Sets Box Story Hydronauts Large Builds Official Sets 

6180: Hydro Search Sub

February 18, 2025February 18, 2025 Master Builder 6896 Views

Year Released: 1998
Bricklink
Instructions

The box reads, “These underwater heroes search the sea for the powerful Hydrolator crystal. But watch out – Enemy sting rays are lurking in the depths! With building sets from the LEGO® SYSTEM™ Hydronauts Collection, only you, the LEGO MANIAC® can determine the outcome of this underwater adventure…”

Back A
Back B
Back C
  • ← 7250: Clone Scout Walker
  • 6180 – Back A →

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EXPLORE MORE OFFICIAL SETS

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Bonus/Value Packs Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space 

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720: Basic Building Set
Basic Large Builds Official Sets Universal Building Set 

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3067 (Kabaya: Town Space Port 2): Test Shuttle
Official Sets Space Port Town Very Small Builds 

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6487: Mountain Rescue
Official Sets Outback Small Builds Town Town Sets 

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4479: TIE Bomber
Episode IV/V/VI Large Builds Official Sets Star Wars Star Wars Sets 

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4565: Freight and Crane Railway
9V Extra Large Builds Official Sets Town Train Train Sets 

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6813: Galactic Chief
Jørn Thomsen Official Sets Space Space Police II Space Police II Sets Very Small Builds 

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6556: Scuba Squad
Divers Official Sets Small Builds Town Town Sets 

6556: Scuba Squad

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10182: Café Corner
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6035: Castle Guard
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BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • BATMAN
  • Bionicle
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Train
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

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