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 Classic Town Small Builds Town Town Alternate Builds Traffic 

6645 – Back B

November 20, 2020November 20, 2020 Master Builder 3124 Views

From: 6645: Street Sweeper
Name: TBD
Submitted by: USER
Instructions

  • Back B

  • ← 6645 – Back A
  • 6645 – Back C →

You May Also Like

6987 – Back B

March 29, 2022March 2, 2026 Master Builder

1793 – Back C

August 31, 2024September 6, 2024 Master Builder

7250 – Back A

June 6, 2025June 7, 2025 Master Builder

6057 – Back A

April 14, 2025April 14, 2025 Master Builder

Book 7777 – Page 16-17

November 11, 2021November 11, 2021 Master Builder

6344 – Back D

October 8, 2024October 8, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

7704: Sonic Phantom
Exo-Force Medium Builds Official Sets 

7704: Sonic Phantom

April 28, 2023April 28, 2023 Master Builder

Year Released: 2006BricklinkInstructions

6561: Hot Rod Club
Medium Builds Official Sets Town Town Sets 

6561: Hot Rod Club

November 10, 2019June 3, 2026 Master Builder
1965: Basic Building Set
Basic Official Sets Universal Building Set Very Small Builds 

1965: Basic Building Set

March 6, 2026March 6, 2026 Master Builder
7127: Imperial AT-ST
Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets 

7127: Imperial AT-ST

December 29, 2021December 29, 2021 Master Builder
1750: Renault Formula 1 Racer
Classic Town Official Sets Race Town Town Sets Very Small Builds 

1750: Renault Formula 1 Racer

July 13, 2021July 13, 2021 Master Builder
6614: Launch Evac 1
ABCs Large Builds Launch Command Official Sets Town Town Sets 

6614: Launch Evac 1

June 30, 2023February 22, 2025 Master Builder
6010: Supply Wagon
Castle Castle Sets Lion Knights Official Sets Small Builds 

6010: Supply Wagon

July 13, 2021July 13, 2021 Master Builder
6932: Stardefender 200
ABCs Futron Sets Futuron Large Builds Official Sets Space 

6932: Stardefender 200

September 24, 2019August 15, 2023 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
924 (487): Space Cruiser
Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen LL Link Medium Builds Official Sets Space 

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder
6038: Wolfpack Renegades
Castle Castle Sets Official Sets Small Builds Wolfpack 

6038: Wolfpack Renegades

October 14, 2021October 14, 2021 Master Builder
Kabaya: Alpha Team 2
Alpha Team Alpha Team Sets Mission Deep Sea Official Sets Very Small Builds 

Kabaya: Alpha Team 2

September 9, 2024September 9, 2024 Master Builder
7474: Urban Avenger vs. Raptor
Dino Attack Official Sets Small Builds 

7474: Urban Avenger vs. Raptor

April 27, 2023April 27, 2023 Master Builder
6985: Cosmic Fleet Voyager
ABCs Classic Space Classic Space Sets Extra Large Builds Official Sets 

6985: Cosmic Fleet Voyager

September 12, 2019August 16, 2023 Master Builder
6453: Com-Link Cruiser (Comlink Cruiser)
Official Sets Small Builds Space Port Town Town Sets 

6453: Com-Link Cruiser (Comlink Cruiser)

August 2, 2020July 14, 2021 Master Builder
6270: Forbidden Island
Box Story Medium Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets 

6270: Forbidden Island

April 4, 2022February 21, 2025 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.