$44.99 when purchased online
Target Online store #3991
About this item
Highlights
- KNUCKLES VS. EGGMAN SHOWDOWN – Gaming fans ages 8 years old and up can build the LEGO Sonic the Hedgehog Knuckles vs. Dr. Eggman Egg Crusher Mech (77005) building set for epic Sonic the Hedgehog battles
- CRUSH AND LAUNCH ACTION – Dr. Eggman's posable mech features an opening cockpit, a giant spinning claw, a rotating 6-stud launcher, and fully articulated limbs for dynamic gaming adventures
- KNUCKLES & DR. EGGMAN MINIFIGURES – 2 iconic Sonic characters with a mech and a hoverboard can duke it out for supremacy as kids stage epic pretend play showdowns and recreate their favorite gaming moments
- COLLECT RINGS & EMERALDS – Gaming fans can launch 2 boulders from the catapult with terrain using a lever push, and speed through their build to gather 3 Gold Rings and 2 Chaos Emeralds
- GIFT IDEA FOR BOYS & GIRLS – Makes an exciting birthday present for young gamers who love Sonic toys, building blocks, and bringing video game adventures to life through hands-on interactive play
- 3D BUILDING TOOLS – The LEGO Builder app provides digital tools that guide young builders through construction with zoom and rotation features
- DIMENSIONS – The 350-piece set includes a LEGO mech toy that stands over 6 in. (15 cm) tall and a catapult with terrain that measures over 1.5 in. (4 cm) high, 2 in. (6 cm) wide and 3 in. (7 cm) deep
Description
Chaos has been unleashed! Young gaming fans ages 8 years old and up can build epic Sonic adventures with the LEGO Sonic the Hedgehog Knuckles vs. Dr. Eggman Egg Crusher Mech (77005) building set. This action-packed Sonic toy brings the high-speed world of gaming to life as kids construct Dr. Eggman's massive mechanical destroyer, complete with an opening cockpit, a giant spinning claw, a rotating 6-stud launcher, and articulated limbs for maximum battle action. The power of Angel Island comes to life as Knuckles the Echidna prepares to defend his territory using his signature gliding skills and the included hoverboard for aerial attacks. Kids can stage epic showdowns between these iconic Sonic characters while launching boulders from the catapult with terrain using a lever push, and collecting three precious Gold Rings and two Chaos Emeralds scattered throughout the battlefield. This thrilling building toy adventure includes minifigures of Knuckles and Dr. Eggman, and lets young gamers recreate their favorite Sonic the Hedgehog game moments or invent brand-new speed-fueled stories with endless action possibilities. Makes an exciting birthday gift for boys and girls who love gaming action, building toys, and pretend play adventures that bring their favorite video game characters to life. For more building fun, other LEGO Sonic the Hedgehog sets (each set sold separately) can expand the gaming universe, while the LEGO Builder app provides enhanced digital building guidance and 3D viewing tools. Contains 350 pieces.
Number of Pieces: 350
Suggested Age: 8 Years and Up
Model #: 77005
Educational Focus: Gross Motor Skills, Fine Motor Skills, Creativity, Sensory Development, Creative Thinking
Theme: Video Games
Includes: Toy Building Components
Industry or Government Certifications: CPSIA Certified
Material: Plastic
Battery: No Battery Used
Street Date: August 1, 2025
TCIN: 94152837
UPC: 673419404839
Item Number (DPCI): 204-00-8621
Origin: Made in the USA or Imported
Shipping details
Estimated ship dimensions: 2.323 inches length x 11.102 inches width x 10.315 inches height
Estimated ship weight: 1.1 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
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4.9 out of 5 stars with 15 reviews
LEGO Knuckles vs Dr. Eggman Egg Crusher
5 out of 5 stars
- 3 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] I recieved this Knuckles vs. Dr. Eggman Egg Crusher Merch Lego set from Lego and Influenster for my honest review . I had alot of fun with this set it comes with instructions and four bags of each labeled different Legos, its very easy to follow examples to assemble the Legos from the booklet . It took my son about an hour to finish and loves how the Legos are interactive you build a Egg launcher and the Dr. Eggman Crusher actually shoots out lego pellets at you watch out for the eyes..Would definitely recommend this set for the Sonic lovers and smaller kids to interact with mind building activities.
Perfect for preteens
5 out of 5 stars
r_hollywood_2654 - 5 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] I gifted this to my 10 year old nephew and he loved it! The instructions were clear, the set is durable and the theme is perfect for a pre-teen boy. It’s hard finding things that aren’t electronics for this age range and this set came in perfect.
good lego set
4 out of 5 stars
cielooo_4789 - 7 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] I got this for my nephew, he absolutely loves sonic. He was so excited build it, I had his older brother help him since it could be a bit tricky for his age since he is only 6. It was easier for the 12 year old, which also really enjoyed the activity. It was a great for them to bond. Anyways the size is perfect for a knick knack on a book shelf, which is where they put it. It had great quality and is durable
My son loved this Lego set!
5 out of 5 stars
adrianl55_9735 - 7 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] My son loved this Lego set! The characters that came with were awesome. So much more detail than the average Lego guy. The mech actually shot out projectiles to make everything so much more realistic. I will say it shoots out pretty fast so be careful with little ones using this. My son built it in about 10-15mins.
easy to understand, fun to assemble
5 out of 5 stars
tran20_23 - 8 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] Has a very detailed, step by step instruction manual with visuals for easy assembly which is great for both kids and adults. The bags are also numbered so putting the lego pieces together are less confusing.
Fun
5 out of 5 stars
savingsforyou3_9353 - 10 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] Very nice place set for boys. I just watched this movie with my son so that was exciting to get this Lego set for sonic. Looks fun and not too big or challenging.
Durable gift
5 out of 5 stars
hetalp_643 - 10 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] I got this LEGO new set for Knuckles vs. Dr. Eggman. This whole egg crusher mech made my nephew so excited because he is a big fan of Sonic movie series. It could be a durable birthday gift.
Sonic the Hedgehog and Lego = Perfection
5 out of 5 stars
msskittles_5123 - 10 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] My kids absolutely love Sonic the Hedgehog and are all over the moon to put this Lego set together. Perfect size for youngsters and will keep their creativity going for hours.
Perfect!
5 out of 5 stars
thadeusb_3179 - 10 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] Super impressed by this Lego set. I have always been a fan of Sonic The Hedgehog and this set did not disappoint. I would recommend to any Sonic fan!
Awesome Lego Set
5 out of 5 stars
trinitylace_4739 - 11 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] My son loved this set! Easy to put together. Safe and sturdy. The instructions were detailed and had pictures to follow along. Definitely a win!
Still a fun pass time 40 years later
5 out of 5 stars
haveaball717_6903 - 11 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] So, at first I felt silly, sitting at a desk, a grown man putting together Legos. But shortly after I started, I remembered how fun it was as a kid and how much I used to love doing exactly that, sitting around putting together Legos. It’s a cute set that I will eventually give to my nephew. However, I did pretend to go flying across my room as I packed it up to make sure I give him all the pieces.
Fun but pieces easy to lose
5 out of 5 stars
jaclynte292_158 - 12 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] My eight year old was able to put this together fairly quickly and was excited to play with the completed Lego set. As a Sonic fan, they were happy to add this to their other Sonic Lego pieces for more expansive gameplay. They really enjoyed how the gun shot out the small Lego circles and that the arm claw rotated. The only downside is some of the pieces, like the ‘bullets’ are really small and when shot out at a high speed they are hard to locate.
As expected
5 out of 5 stars
joes45_3176 - 13 days ago
originally posted on influenster.com

[This review was collected as part of a promotion.] As expected and not hard to put together also the value for it reasonable and great as a gift or something to do for entertainment or for a collection to have .