LEGO Turtle Sub Undersea Chase
Set #79121 · 2014 · 684 pieces · Substantial build
Set Details
- Set Number
- 79121
- Name
- Turtle Sub Undersea Chase
- Year
- 2014
- Pieces
- 684
- Complexity
- Substantial
- Build Time
- 2-4 hours
- Ages
- 10+
- Type
- Play-focused
About LEGO Turtle Sub Undersea Chase
LEGO Turtle Sub Undersea Chase (set #79121) is a large, detailed build with 684 pieces from the Teenage Mutant Ninja Turtles theme, released in 2014. The Teenage Mutant Ninja Turtles line features builds from the TMNT franchise. At 684 pieces, this is a substantial-level build with an estimated build time of 2-4 hours, suitable for ages 10+. As a licensed set, it recreates elements from the official Teenage Mutant Ninja Turtles property.
Set Highlights
- 684 pieces at substantial complexity — a 2-4 hours build.
- Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
- Play-focused build with interactive elements designed for 10+ builders.
- Officially licensed Teenage Mutant Ninja Turtles set — faithful recreation of the source property.
Who Is This Set For?
Gift for Teenage Mutant Ninja Turtles Fans
The natural overlap between Teenage Mutant Ninja Turtles fans and LEGO fans makes this a go-to gift. The set brings recognizable characters and scenes into brick form.
Themed Play & Roleplay
Minifigures and themed accessories support imaginative play tied to the Teenage Mutant Ninja Turtles universe — the play experience extends well beyond the initial build.
Collector's Display Piece
Many fans build licensed sets and display them complete. Limited or retired licensed releases often gain value over time, making them popular with serious collectors.
Build Tips
A five-minute sort by color or piece type before starting saves time hunting for specific bricks mid-step.
Follow the numbered steps in sequence — structural elements early in the build support everything that comes after.
For active play sets, key connection points (hinges, turntables, clip joints) can loosen over time — a small dab of LEGO's own tube clutch lubricant on the stud resolves most looseness without damage.
Finding Instructions
Building instructions for LEGO Turtle Sub Undersea Chase (#79121) are available as a free PDF on LEGO.com. You can also upload a photo of this set to LegoFinder to identify it and access the instructions directly.
Turtle Sub Undersea Chase FAQ
Related Reading
More Teenage Mutant Ninja Turtles Sets
See all Teenage Mutant Ninja Turtles →
Also Released in 2014
All 2014 sets →Similar Build Difficulty
Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.
![LEGO Limited Edition [Blue Tub]](https://cdn.rebrickable.com/media/sets/5537-1.jpg)
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