Free tool

LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Monster Fighters Promotional Pack

Checking

5000644 Monster Fighters Promotional Pack

6 pieces in 6 part and color combinations, plus 1 minifigure.

The official piece count includes the 6 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Show

Piece checklist

Black 1 piece

  • Animal, Bat Black Part 30103 Element 4587312 or 4106513 ×1

Glow in Dark White 1 piece

  • Insect, Spider Glow in Dark White Part 30238 Element 6005583 ×1

Trans-Green 1 piece

  • Rock 1 x 1 Crystal 5 Point Trans-Green Part 30385 Element 4655335 or 4541539 ×1

Trans-Red 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Red Part 30153 Element 6513969 or 6247785 ×1

White 1 piece

  • Insect Accessory, Spider Web, Hanging White Part 90981 Element 6549520 or 6006221 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 5000644-1 [No Color/Any Color] Part stickerupn0007 ×1

Minifigures 1 figure

  • Skeleton, Standard Face, Ball Joint Arms (3626c Head) Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.