Fang Memory, also known as the Fanged Memory, is a special Gaia Memory that was solely created to protect Philip and act on his orders, enabling him and Shotaro to transform into FangJoker. It can change between its Live Mode, which resembles a Dromaeosaurid, and its Memory Mode, the top of which resembles a dinosaur's head.
When used, half of Kamen Rider Double becomes the white Fanged Right Half, enabling Kamen Rider Double to fight like a berserker while altering the left half to match it in being animalistic in design.
Being made to protect Philip and act as his bodyguard, the Fang Memory shows up whenever he is in danger or whenever he calls for it. Unlike the normal transformations into Kamen Rider Double, this transformation is initiated by Phillip and the process causes Shotaro to fall comatose and transfer his mind until they revert back to normal. This Memory is quite powerful for it`s size as it easily stopped Dopant`s attacks and lifted Shotaro`s weight.
Publication Information
- Riders : Kamen Rider W
- Japanese : 仮面ライダーW(ダブル
- Type : Rider Memory
- Usage : Weaponary
- Season : Kamen Rider W
- Main View : Full Episod
Philip could not control himself while being transformed initially, causing him to go berserk soon after transformation. Later with the help of Shotaro and successfully imposing his will on the Fang Memory, he managed to control his transformed state, although he still suffers the toll from extensive use. When Double presses the Fang Memory's horn between one and three times, he can manifest a bladed weapon on a different part of his body's right side.
- Once : The Arm Saber for Double's wrist to be used as a close combat weapon.
- Twice : The Shoulder Saber for Double's shoulder, which it can be detached from to be used as either a dagger or boomerang-like weapon.
- Thrice : The Maximum Saber for Double's ankle to execute the Fang Streiser Maximum Drive.
FangMetal & FangTrigger


- Main Article : FangMetal & FangTrigger
Memory Gadgets

Memory Gadgets are items powered by artificial Gaia Memories called Pseudo Memories that allow them to switch between their Gadget Mode and their Live Mode. The Gadgets can in turn be attached to Kamen Rider Double's weapons to perform a Maximum Drive with different Elemental Gaia Memories. Like the purified Gaia Memories and the SkullGarry/Rotation-Interchange Base RevolGarry, the Memory Gadgets were likely created by Shroud.
Gadgets:
- Stag Phone
When attached to the Trigger Magnum, it allows Kamen Rider Double to perform the Trigger Stag Burst Maximum Drive, crushing the Dopant between two pincer-like energy projections shot from the Trigger Magnum. When attached to the Metal Shaft, it allows Kamen Rider Double to perform the Metal Stag Break Maximum Drive, crushing the Dopant between two pincer-like energy projections emitted from the Metal Shaft.
- Beetle Phone
- Bat Shot
- Spider Shock
- Frog Pod
- Denden Sensor
SkullGarry

SkullGarry is a tank/garage that holds the SkullBoilder. It was created by Shroud and the vehicle later becomes Kamen Rider Double's RevolGarry. The SkullGarry only appears in the Kamen Rider Skull: Message for Double portion of Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie War Core.
Rotation-Interchange Base RevolGarry

- Rotation-Interchange Base RevolGarry
- Weight : 47500.0 kg
- Total Displacement : 17,000 cc
- Top Speed : 230 km/h
- Max Power/Horsepower : 3,730 kw / 500 PS
- Rotation-Interchange Base RevolGarry is a mobile garage-like truck, and is an updated version of the SkullGarry, once used by Kamen Rider Skull until his death. It is summoned via the Stag Phone. This is arguably Double's strongest vehicle as it can easily knock away even the larger Gaia Memory opponents including the Terror Dragon itself. Besides holding the HardBoilder, the RevolGarry has a revolving wheel that has the components to change the HardBoilder to the HardTurbuler and HardSplasher.

Double, as a Shocker Rider, participates in the Rider Grand Prix race, riding his RevolGarry. His truck, along with Gaim's Sakura Hurricane, is destroyed in the race by Rider 3's TriCyclone.
See more:
- Main Article : Kamen Rider W Arsenal, Weapon & Abilities