Arkham Asylum

Notable parts

• 2 parts come in a colour no other set has for that mould: Hips and Sand Green Legs (Green); Roof / Tower 6 x 8 x 9 (Light Bluish Gray).
• 9 parts appear in only a few other sets: Panel 4 x 6 x 6 Sloped with Stone Wall Print (Dark Bluish Gray) ×3 — also in 8802 Dark Fortress Landing, 8877 Vladek's Dark Fortress; Panel 3 x 8 x 6 with Arched Window (Black) ×2 — also in 8876 Scorpion Prison Cave, 8877 Vladek's Dark Fortress; Bar 1 x 4 x 3 Window [Side Tabs] (Dark Bluish Gray) — also in 7021 Viking Double Catapult vs. the Armored Ofnir Dragon, 6210 Jabba's Sail Barge; Door 1 x 4 x 5 with 4 Panes, Squared Base (Reddish Brown) — also in 4756 Shrieking Shack, 5378 Hogwarts Castle; Hair Long (Dark Red) — also in 4762 Rescue from the Merpeople, 852001 Castle Chess Set; Tile 1 x 1 with Padlock Print (Tan) ×2 — also in 4753 Sirius Black's Escape, 4766 Graveyard Duel, 3825 Krusty Krab; Animal, Rodent, Rat / Mouse [Plain] (Reddish Brown) — also in 4754 Hagrid's Hut, 4753 Sirius Black's Escape, 4853 Spider-Man's Street Chase, 7783 The Batcave: The Penguin and Mr. Freeze's Invasion; Fairing, Motorcycle, Modern (Black) — also in 8967 Gold Tooth's Getaway, 79118 Karai Bike Escape, 7993 Service Station, 8896 Snake Canyon; Hair Angular Swept Sideways (Black) — also in 3573 Superstar Figure, 7705 Gate Assault, 7706 Mobile Defense Tank, 8107 Fight for the Golden Tower.
• 2 parts are otherwise only found in Super Heroes DC sets: Equipment Batman Accessory - Batwing (Black) ×2; Equipment Handcuffs Long [Batman] (Black).
• 8 moulds first came out in 2006, including in this set: Weapon Batarang ×3; Weapon Gun Semiautomatic Pistol ×3; Creature Body Part, Dragon Wing 8 x 10 [Plain] ×2; Equipment Handcuffs Long [Batman]; Hair Angular Swept Sideways; and 3 more.
• 6 existing moulds first came out in their colour in 2006, including in this set: Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs (Dark Bluish Gray) ×3; Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) (Black) ×2; Bar 1 x 4 x 3 Window [Side Tabs] (Dark Bluish Gray); Brick Wedged, Curved 2 x 3 x 2/3 Two Studs, Wing End (Black); Fairing, Motorcycle, Modern (Black); and 1 more.
• 4 minifigure parts with their print are only in this set: Minifig Head Nightwing, Black Eyemask, Smile Print [Blocked Open Stud] (Light Nougat); Minifig Head Poison Ivy, Red Eyebrows, Green Lips Print [Blocked Open Stud] (Light Nougat); Torso Bodysuit, Blue V Logo and Muscles Print (Nightwing), Blue Arms, Black… (Black); Torso Dress Made of Leaves Print (Poison Ivy), Light Nougat Arms and Hands (Light Nougat).

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