Thwimp

What there is most of

• Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] · Light Bluish Gray×12
• Brick Special 1 x 2 x 1 2/3 with 8 Studs on 3 Sides · Black×2
• Plate Round 1 x 1 with Solid Stud · Orange×2
• Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) · Dark Bluish Gray×2
• Tile Round 1 x 1 · Yellow×2
• Brick 1 x 4 · Dark Bluish Gray×1
• Brick Special 1 x 4 with Masonry Brick Profile · Dark Bluish Gray×1
• Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) · Light Bluish Gray×1
• Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs · Red×1
• Plate Special 2 x 2 with Groove and Center Stud (Jumper) · Dark Bluish Gray×1
• Tile 2 x 2 with Black Curved Lines and Border Print (Thwimp Face) · Light Bluish Gray×1
• Tile 2 x 2 with Thwimp and Barcode Print (Sticker) · Light Bluish Gray×1

The twenty most numerous parts, longest bar first. Start a checklist to see all 11 part types and tick them off as you find them.