Skip to content

Home
All Products
- New Sets
- All New Sets
- Star Wars
- DC
- Marvel
- Architecture
- Botanical Collection
- City
- Creator
- Classic
- Disney
- DUPLO
- Friends
- Harry Potter
- Jurassic World
- Minecraft
- Ninjago
- Speed Champions
- Technic
- 18+ Sets
Certified Complete
Previously Owned
Polybags
Gear
Storage
Bulk
Holiday Items
Back to School!
About Us
Birthday Parties

Free Standard Shipping in the US on ALL Orders of $50 or More!

Home
All Products
- All New Sets
- Star Wars
- DC
- Marvel
- Architecture
- Botanical Collection
- City
- Creator
- Classic
- Disney
- DUPLO
- Friends
- Harry Potter
- Jurassic World
- Minecraft
- Ninjago
- Speed Champions
- Technic
- 18+ Sets
All Minifigures

Star Wars

Marvel

DC

Harry Potter

Castle

Lord of the Rings (Hobbit)

Ninjago
Collectible Minifigures

Marvel Studios

DC Superheroes

Disney

The Simpsons

The Muppets

The LEGO Movie

Looney Tunes

Series 1

Series 2

Series 3

Series 4

Series 5

Series 6

Series 7

Series 8

Series 9

Series 10

Series 11

Series 12

Series 13

Series 14

Series 15

Series 16

Series 18

Series 19

Series 20

Series 21

Series 22

Series 23

Series 24

Series 25

Series 26
Custom Minifigures

Clone Army Customs Minifigures

Big Kid Brix Custom Minifigures
Certified Complete
Previously Owned
Polybags
Gear
Storage
Bulk
Holiday Items
Back to School!
About Us
Birthday Parties

Log in Cart Cart

3804 LEGO Mindstorms: Robotics Invention System, Version 2.0 (Retired) (Sealed Bags)

3804 LEGO Mindstorms: Robotics Invention System, Version 2.0 (Retired) (Sealed Bags)

3804 LEGO Mindstorms: Robotics Invention System, Version 2.0 (Retired) (Sealed Bags)

Regular price ~~$249.99~~ $249.99 Sale

Stock Online

Check Store Availability

Share Share on Facebook Tweet Tweet on Twitter Pin it Pin on Pinterest

QUICK LINKS

Search
About Us
BUY, SELL & TRADE
Location
Contact Us
Birthday Parties
Refund Policies
Privacy policy
Terms of service

COLLECTIONS

New Products
Retired Sets
Previously Owned
Bulk
18+
Star Wars
Marvel
DC
City
Creator
Friends

FRANCHISE INFO

Corporate Website
Franchising Opportunities
Nationwide Store Locator
Newsroom

Copyright © 2011- 2026 Bricks & Minifigs®
LEGO® is a registered trademark of the LEGO® Group of companies which does not sponsor, authorize or endorse these programs or this web site.
Some LEGO® sets contain small parts that are NOT suitable for, and may pose a hazard to, children under 3 years of age. LEGO® DUPLO® sets have larger pieces which are specially designed for children under 3.

Facebook
Instagram

© 2026, Bricks and Minifigs Ontario