Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
    • 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
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6878 – Back C

October 4, 2019October 25, 2021 Master Builder 5114 Views

From: 6878: Sub Orbital Guardian
Name: Sub Zero Hero 1
Instructions: View PDF | Download .io File

Contributions

  1. Name, PDF, and .io file submitted on May 17, 2021 by: IceAge2002
  • ← 6878 – Back B
  • 194: Family →

You May Also Like

5956 – Back B

August 31, 2024August 31, 2024 Master Builder

6100 – Back B

March 20, 2023March 21, 2023 Master Builder

379 – Back A

April 10, 2021April 10, 2021 Master Builder

6390 – Back B

February 10, 2023February 10, 2023 Master Builder

6740 – Back B

April 16, 2026April 22, 2026 Master Builder

6734 – Back B

April 7, 2026April 7, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

1787: Crater Cruiser
Medium Builds Official Sets Space Unitron Unitron Sets 

1787: Crater Cruiser

April 9, 2020July 18, 2020 Master Builder

Year Released: 1995InstructionsBricklink

1731 (1711, Kabaya: Space 4): Ice Planet Scooter
Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Official Sets Space Very Small Builds 

1731 (1711, Kabaya: Space 4): Ice Planet Scooter

April 6, 2020March 10, 2025 Master Builder
4558: Metroliner
9V Extra Large Builds Official Sets Town Train Train Sets 

4558: Metroliner

August 11, 2026August 11, 2026 Master Builder
6271: Imperial Flagship
Box Story Imperial Guards Large Builds Official Sets Pirates Pirates I Pirates Sets 

6271: Imperial Flagship

January 6, 2022February 20, 2025 Master Builder
6666: Ambulance
Classic Town Hospital Official Sets Small Builds Town Town Sets 

6666: Ambulance

October 30, 2021October 30, 2021 Master Builder
6660: Hook and Haul Wrecker
Classic Town Off-Road Official Sets Small Builds Town Town Sets 

6660: Hook and Haul Wrecker

June 23, 2025June 23, 2025 Master Builder
6493: Flying Time Vessel
Large Builds Official Sets Time Cruisers Time Cruisers Sets 

6493: Flying Time Vessel

July 14, 2021December 29, 2021 Master Builder
2162: Hydro Reef Wrecker
Aquaraiders I Aquazone Aquazone Sets Large Builds Official Sets 

2162: Hydro Reef Wrecker

July 18, 2022July 18, 2022 Master Builder
6977: Arachnoid Star Base
Insectoids Insectoids Sets Large Builds Official Sets 

6977: Arachnoid Star Base

November 9, 2019November 9, 2019 Master Builder
7121: Naboo Swamp
Official Sets Small Builds Star Wars Star Wars Sets 

7121: Naboo Swamp

March 2, 2023March 2, 2023 Master Builder
6739: Truck & Stunt Trikes
Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets 

6739: Truck & Stunt Trikes

April 16, 2026April 16, 2026 Master Builder
6928: Uranium Search Vehicle
Classic Space Classic Space Sets Medium Builds Official Sets Space 

6928: Uranium Search Vehicle

January 12, 2021October 21, 2024 Master Builder
7184: Trade Federation MTT
Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets 

7184: Trade Federation MTT

April 21, 2026April 21, 2026 Master Builder
6649: Street Sweeper
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6649: Street Sweeper

July 8, 2022July 8, 2022 Master Builder
6831: Message Decoder
Bjarne Tveskov Official Sets Space Space Police I Space Police I Sets Very Small Builds 

6831: Message Decoder

May 3, 2020July 29, 2023 Master Builder
8002: Destroyer Droid
Episode I Extra Large Builds Official Sets Star Wars Star Wars Sets Star Wars Technic Technic 

8002: Destroyer Droid

August 17, 2023September 1, 2023 Master Builder

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.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.