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
Airport Alternate Builds Classic Town Large Builds Town Town Alternate Builds 

6345 – Back E

January 29, 2021September 15, 2022 Master Builder 4330 Views

From: 6345: Aerial Acrobats
Name: TBD
Submitted by: USER
Instructions:

Back E

  • ← 6345 – Back D
  • 2586: King & Throne (Chess King) →

You May Also Like

6540 – Back C

September 9, 2026September 9, 2026 Master Builder

4536 – Back A

July 10, 2026July 10, 2026 Master Builder

7161 – Instructions 1

April 21, 2026April 21, 2026 Master Builder

Book 7777 – Page 70-71

November 11, 2021November 11, 2021 Master Builder

6279: Skull Island

February 21, 2025February 21, 2025 Master Builder

6209 – Back A

February 1, 2024February 1, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

1877: Crusader’s Cart
Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds 

1877: Crusader’s Cart

October 11, 2021September 24, 2024 Master Builder

Year Released: 1990BricklinkInstructions *This set is the same as 1680: Hay Cart with Smugglers. This set was available in 1675:

7473: Street Sprinter vs. Mutant Lizard
Dino Attack Official Sets Small Builds 

7473: Street Sprinter vs. Mutant Lizard

March 21, 2023March 21, 2023 Master Builder
6402: Sidewalk Cafe
Official Sets Paradisa Town Town Sets Very Small Builds 

6402: Sidewalk Cafe

October 5, 2019January 14, 2021 Master Builder
1555: Santa Claus Polybag
Holiday and Event Holiday and Event Sets Official Sets Very Small Builds 

1555: Santa Claus Polybag

April 28, 2023May 5, 2026 Master Builder
5580: Highway Rig
Extra Large Builds Model Team Model Team Sets Official Sets 

5580: Highway Rig

February 9, 2026February 9, 2026 Master Builder
4591: Star Strike
Drome Racers Official Sets Racers Very Small Builds 

4591: Star Strike

February 21, 2025February 21, 2025 Master Builder
6755: Sheriff’s Lock-Up
Cowboys Medium Builds Official Sets Western Western Sets 

6755: Sheriff’s Lock-Up

July 3, 2024February 18, 2025 Master Builder
1747: Treasure Cave
Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

1747: Treasure Cave

May 6, 2022May 6, 2022 Master Builder
3051: Blaze Attack
Medium Builds Ninja Ninja Alternate Builds Ninja Official Sets Official Sets 

3051: Blaze Attack

October 26, 2026October 26, 2026 Master Builder
381: Police Headquarters
Classic Town Large Builds Official Sets Police Town Town Sets 

381: Police Headquarters

July 27, 2023July 27, 2023 Master Builder
7124: Flash Speeder
Official Sets Small Builds Star Wars Star Wars Sets 

7124: Flash Speeder

November 15, 2019November 15, 2019 Master Builder
6845: Cosmic Charger
Classic Space Classic Space Sets Official Sets Small Builds Space 

6845: Cosmic Charger

January 14, 2025January 14, 2025 Master Builder
6837: Cosmic Creeper (Mantis Scavenger)
ABCs Insectoids Insectoids Sets Official Sets Small Builds 

6837: Cosmic Creeper (Mantis Scavenger)

April 2, 2020March 22, 2025 Master Builder
6487: Mountain Rescue
Official Sets Outback Small Builds Town Town Sets 

6487: Mountain Rescue

July 25, 2022July 25, 2022 Master Builder
6800 (6816, Kabaya: Space 2): Cyber Blaster
Official Sets Space UFO UFO Sets Very Small Builds 

6800 (6816, Kabaya: Space 2): Cyber Blaster

October 4, 2024February 25, 2025 Master Builder
6380: Emergency Treatment Center (St. Mary’s Hospital)
Classic Town Hospital Large Builds Official Sets Town Town Sets 

6380: Emergency Treatment Center (St. Mary’s Hospital)

July 15, 2022July 15, 2022 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.