MT-61 Crystal Reaper

Notable parts

• 2 parts come in a colour no other set has for that mould: Large Figure Mask / Visor with Axle Hole (White) ×6; Windscreen 8 x 6 x 2 Curved (Trans-Orange).
• 5 parts appear in only a few other sets: Bar 6L with Round Cap and Partially Flat Shaft (Light Bluish Gray) ×3 — also in 7646 ETX Alien Infiltrator (all Space); Launcher, Technic Brick Special 2 x 4 with 5 Studs, Axle Hole and Pin Launching… (Dark Bluish Gray) — also in 7646 ETX Alien Infiltrator (all Space); Technic Tread Sprocket Wheel Large 10 Tooth (Orange) ×6 — also in 991452, 8996 Skopio XV-1; Arm / Leg Mechanical - Alien (Trans-Green) ×4 — also in 7644 MX-81 Hypersonic Operations Aircraft, 7649 MT-201 Ultra-Drill Walker, 7646 ETX Alien Infiltrator (all Space); Windscreen 6 x 4 x 2 Wedge Curved (Trans-Orange) — also in 7649 MT-201 Ultra-Drill Walker, 7693 ETX Alien Strike, 8113 Assault Tiger.
• 2 parts are otherwise only found in Space sets: Wheel Hard Plastic Small (22mm D. x 24mm) (Orange) ×4; Legs Martian Rounded (Trans-Green).
• 8 moulds first came out in 2008, including in this set: Arm / Leg Mechanical - Alien ×4; Bar 6L with Round Cap and Partially Flat Shaft ×3; Hinge Plate 1 x 2 Locking with 2 Fingers on Side, 9 Teeth ×3; Plate Special 1 x 4 with Angled Tubes ×2; Technic Circular Saw Blade 9 x 9 with Pin Hole ×2; and 3 more.
• 5 existing moulds first came out in their colour in 2008, including in this set: Technic Link Tread Wide with Two Pin Holes (Black) ×70; Technic Tread Sprocket Wheel Large 10 Tooth (Orange) ×6; Brick Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges] (White) ×4; Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips] (Black) ×3; Plate Special 1 x 2 with Handle on End [Closed Ends] (White) ×2.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.