Hydraxon

Notable parts

• 4 parts appear in only a few other sets: Large Figure Mask Hydraxon (Pearl Light Gray) — also in 6127 Bad Guy 2008 (all Bionicle); Large Figure Weapon Blade, Shark Tooth (Pearl Light Gray) — also in 8939 Lesovikk (all Bionicle); Large Figure Foot, Piraka Mechanical (Black) ×2 — also in 8991 Tuma, 8913 Toa Nuparu, 7145 Von Nebula; Large Figure Foot, Toa Inika Elliptical (Black) ×2 — also in 8984 Stronius, 8729 Toa Nuparu, 6945 Bad Guy 07 (all Bionicle).
• 10 parts are otherwise only found in Bionicle sets: Projectile, Large Figure Weapon, Ammo (Cordak) (Red) ×9; Large Figure Limb Cover / Back Plate (Hydruka) (Pearl Light Gray) ×2; Large Figure Weapon Blade (Hewkii Mahri / Solek) (Pearl Light Gray) ×2; Large Figure Weapon Blade, Mahri Matoran (Pearl Light Gray) ×2; Large Figure Weapon Claw Blade, Small (Pearl Light Gray) ×2; and 5 more.
• 10 moulds first came out in 2007, including in this set: Projectile, Large Figure Weapon, Ammo (Cordak) ×9; Flexible Ribbed Hose 8mm Ends 19L ×2; Large Figure Limb Cover / Back Plate (Hydruka) ×2; Large Figure Weapon Blade (Hewkii Mahri / Solek) ×2; Large Figure Weapon Blade, Mahri Matoran ×2; and 5 more.
• 3 existing moulds first came out in their colour in 2007, including in this set: Arm Mechanical with Clip [Thin Support] (Pearl Dark Gray) ×8; Large Figure Foot, Piraka Mechanical (Black) ×2; Technic Axle 8 with Stop (Dark Bluish Gray) ×2.

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