Shadow Mech vs. GUN Trooper (LEGO 77120)

Author: lego_official

LEGO official set 77120 Shadow Mech vs. GUN Trooper building instructions. Series: LEGO® Sonic the Hedgehog™. Pieces: 374. Release year: 2026. Suitable age: 8+. 1 instruction manual in total.

Shadow Mech vs. GUN Trooper (LEGO 77120) cover

Brand
LEGO
Set number
77120
Series
LEGO® Sonic the Hedgehog™
Category
Scenery
Pieces
374
Difficulty
3 / 5
Released
2026
Instruction pages
97 pages

About this set

LEGO 77120 sits in the LEGO Sonic the Hedgehog line, a 374-piece scene set rated 3/5 for difficulty that pits Shadow's mech against a GUN Trooper. The color story runs across black, red, green, white, yellow, orange and gray: black carries the mech body, red marks the spiky head decoration and shoulder armor edges, green goes to the small robot, yellow shows up on the dual yellow longswords, and orange and gray separate the turret and ground details. Three things stand out on the build. The spiked shoulder armor flares outward and frames the black torso, while the red spiky head piece gives the silhouette a sharp contrast. The dual yellow longswords push the pose toward an attack stance. On the other side, the gray turret and green small robot give the standoff something to anchor against. For build order, start with the green robot and turret; both use few parts and go together quickly, so they work as a warm-up. Then move to the mech torso and shoulder armor. The spikes are mirrored left and right, so working bag by bag keeps the parts straight. Attach the longswords last so you are not knocking them off mid-build. The 3/5 rating means some symmetry and angle work, but nothing that stalls you. It suits Sonic collectors, fans of mech and villain-faction subjects, and anyone after a mid-size scene set for a practice build.

  • Category: Scenery
  • Difficulty: 3 / 5
  • Parts: 374
  • Brand: LEGO
  • Set number: 77120
  • Views: 5
  • Likes: 0

Instruction pages

Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 1Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 2Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 3Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 4Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 5Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 6Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 7Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 8Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 9Shadow Mech vs. GUN Trooper (LEGO 77120) building instructions page 10