Arcade Accessor

The Transformation Belt Arcade Accessor is a transformation belt for the Arcade Riders.

Design
The Arcade Accessor consists of the following parts:
 * AA Hyper Module (AAハイパーモジュール), a V-shaped silver data materializer installed on the top of the Accessor. It can materialize suits and weapons in the game area based on the data recorded on the Game Card. The inside is black-boxed. Only developers can understand the basis of the system.
 * Actuation Lever (アクチュエーションレバー), the pink lever used when level up is executed. By pulling the lever, it will activate the reinforcement program written on the Game Card installed. The ability of the Rider will increase and new equipment will be materialized. Also, the Rider can cancel the transformation by removing Game Card after closing the lever.
 * High Flash Indicator (ハイフラッシュインジケータ), a light emitting panel installed on the centre of the Accessor. The graphic of the installed Game Card will be displayed. Also, it has the function to act as command menu and can project image into air when attacking.
 * Main Game Card Slot, the slot for Game Card used in transformation or level up process. It can instantaneously read the data of the inserted Game Card, and automatically execute transformation programs. The Game Card used for transformation is inserted in the slot closer to the centre of the driver while the other slot is used for leveling up.
 * AA Updater (AAアップデーター), a black data communication device installed next to the Main Game Card Slot on the Accessor. In order to improve the performance of the driver, it has a function to automatically transfer battle data to the data server of the development company. Also, correction patches that solve system problems will be automatically downloaded and installed.
 * Outer Guard Case (アウターガードケース), the exterior parts to protect the internal function of the gamer driver. Lightweight and high strength materials that are easy to mold and use are used, and the surface layer is coated with a coating agent which enhances water resistance, heat resistance and impact resistance. Also, a cooler unit is installed to prevent thermal runaway.
 * Fitting Bind (フィッティングバインド), the belt part of the driver. The length of the belt is automatically adjusted according to the body shape of the Rider. Also, using the bioenergetic energy absorbed from the Rider, energy is generated to operate each system of the Accessor.
 * Vital Connector (バイタルコネクター), a black device connecting two ends of the belt on the back, also monitors the health condition of the Rider. It can determine whether the wearer is a conforming person, and activates various functions of the driver only when the wearer is recognized as a conforming person. It also has the function of measuring the physical data of the wearer and automatically adjusting the size of the suit.

Compatibility
Before someone can properly use the Gamer Driver, they must become a candidate by undergoing a compatibility surgery, which introduces a small sample of the Bugster Virus to their body to induce antibody production. This (presumably) allows them to handle the side effects of usage, which would otherwise be dangerous. Because Arcade Accessors are meant to protect humans from the Bugster outbreak, Bugsters cannot use Arcade Accessors, unless they somehow manage to obtain human DNA. When a Rider gets a game over, the body of the Arcade Accessor user will disintegrate into data. This compability could be rendered invalid, although Arcade Maximum Gamer Level 99 is the only one who can do so.

If a normal human tries to use a Game Card while wearing the Accessor, the Game Start screen will glitch and stop working, and if they have been infected with a latent Bugster virus, the infection will immediately reactivate. If a normal human tries to use a Proto Game Card while wearing the Accessor, it will cause.

Transformation

 * By inserting an active Game Card into the right Game Card Slot, the user is able to transform into a Level 1 Power Rider.
 * By opening the Actuation Lever to reveal the High Flash Indicator projecting a transformation screen into the air in front of the Rider, a Level 1 Rider is able to level up to Level 2 by passing though the screen.
 * By quickly opening the Actuation Lever right after inserting the Game Card into his Arcade Accessor, the user will skip the Level 1 and directly transform into a Level 2 Power Rider.
 * By closing the Actuation Lever, a Level 2 Rider can revert to Level 1.
 * By closing the Actuation Lever after activating another Game Card, a Level 2 Rider will not revert to Level 1, and the user will be able to insert the Game Card into the left Game Card Slot and reopen the Actuation Lever to level up to Level 3 by passing through the pair of projected transformation screens.
 * By inserting a second Game Card in the left Game Card Slot while in Level 1 and opening the Actuation Lever for the first time, the user is immediately taken to Level 3.
 * The same procedures for Level 3 are used to access Level 4 - Level 5 if the second Gashat is either Level 4's Ju Ju Burger and Night of Safari, or Level 5's Drago Knight Hunter 26.
 * If the Gashat takes up both slots, the Rider will open the Actuation Lever to transform into the respective form. Examples of this are Mighty Brothers 20's Level 10, the Double Card Bravo's Level 50, Maximum Mighty 99's Level 99, and the Double Card's Level 99. To perform a Critical Finisher, the Rider must close and re-open the Actuation Lever.
 * Mighty Brothers 20 is unique in that the user can transform into Level 20 by closing the Actuation Lever, then opening it again. However, it is unknown how the Level 20 Rider is able to revert back to Level 10, as re-closing and re-opening the Actuation Lever while in Level 20 will trigger a Critical Strike.
 * If the user wants to use Critical Strike while in Level 10, the user must re-open the Actuation Lever twice.
 * The Double Card's Level 99 has three finishers: Critical Combo, Smash, and Bomber. To perform the Critical Bomber, the user simply closes the Actuation Lever and reopening it. To perform Critical Combo or Critical Smash, the user must first turn the dial on the Double Card to the corresponding side before closing and reopening the Actuation Lever.
 * By closing the Actuation Lever and removing the Game Card(s), a Level 2 or above Rider's transformation will be canceled. Similarly, a Level 1 Rider can also cancel their transformation by removing the Game Card. Alternatively, the Level 1 Rider can choose to perform a Critical Strike instead.
 * When a Rider's Rider Gauge is critically low, the Gamer Driver's protection function will automatically eject the inserting Game Card to cancel the transformation and preserve their life. This function, however, can be prevented by the Rider themselves, or by the Doom Jammer of Zombie Gamer. This function appears to be exclusive to human Riders, due to the fact that Parado and Kuroto as Bugsters were not de-transformed automatically, no matter how low their Gauges were.

Playable Games
The Arcade Accessor has a list of playable games corresponding to the Game Cards. When a game's victory condition is fulfilled, typically by defeating the Bugster born from that game's data, a projection from the belt states "Game Clear!" over the corresponding image of the Game Card (the Game Card itself needs not be the one used to defeat its corresponding Bugster). The Game Clear count is independent from the Rider who cleared it, as when a Rider clears a Game, other Riders' previously cleared Games are also shown as Clear. The only exception was a production error in episode 3, where after Paintball cleared Blaster Ball 2, none of the other games were labeled as cleared. The overall "Game Clear" count was also kept track of through a screen in Kuroto Dan's office at Glitch Corp.

Other Power Riders are capable of clearing games, as shown by Merlin defeating the Doral Bugster, Samurai beating the Giril Bugster, Engine besting the Robol Bugster and Phantom Burst destroying the Hatena Bugstar.

After the 10 games were cleared, however, "Game Clear!" is still announced upon the defeat of a Bugster, though without the projected list of game titles. This now simply indicates that a battle has been won, and no longer relates to the Gashats being used, as there is no longer a connection between the Game Card involved and the Bugster defeated (excepting Ju Ju Burger and Burgermon). As such, the specific Gashat games themselves no longer seem to be "cleared" by defeating a Bugster with them, as it wasn't that game's data the Bugster was born from.
 * Mighty Action 10: Cleared by destroying the boss monster Salty.
 * Taddle Quest: Cleared by destroying the boss monster Aranbura.
 * Bang Bang Shooting: Cleared by destroying the boss monster Commander Revol.
 * Bakusou Bike: Cleared by defeating the boss monster Motors in a motorbike race; destroying him was not required.
 * Gekitotsu Robots: Cleared by destroying the user, Collabos Bugster (Gekitotsu Robots), and most prominently, Gatton Bugster.
 * DoReMiFa Beat: Cleared by destroying the user, Collabos Bugster (DoReMiFa Beat). An alternative non-destructive method was to make Poppy Pipopapo smile.
 * Giri Giri Chambara: Cleared by destroying the user, Collabos Bugster (Giri Giri Chambara), and most prominently, Kaiden Bugster.
 * Jet Combat: Cleared by destroying the user, Collabos Bugster (Jet Combat) and most promiently, Vernier Bugster.
 * Drago Knight Hunter Z: Cleared by destroying the user, Graphite.
 * Shakariki Sports: Cleared by defeating the user, Kamen Rider Genm and most prominently, Charlie Bugster. Genm being tied closely enough to clear this game by defeating him may be because he was the user of the Game Card.
 * Ju Ju Burger: Cleared by making the boss monster Burgermon happy by preparing a burger for him.
 * Toki Meki Crisis: Cleared by defeating Lovelica Bugster.
 * Kamen Rider Chronicle: Cleared by defeating Gamedeus. (later reversed by Freezer fusing with Gamedeus' virus to become Gamedeus Freezer)
 * Ganbarizing: Cleared by defeating a duplicate of Masked Rider Rhytym.
 * Proto Drago Knight Hunter Z: Cleared by defeating the Doral Bugster.
 * Proto Giri Giri Chambara: Cleared by defeating the Giril Bugster.
 * Proto Gekitotsu Robots: Cleared by defeating the Robol Bugster.
 * Bakusou Treasure: Cleared by defeating Genm Level 0.
 * Nazo Toki Labyrinth: Cleared by defeating Hatena Bugster (Nazo Toki Labyrinth).
 * Galaxian: Cleared by destroying the Aliens from the original game.
 * Xevious & Chou Super Hero Taisen: Cleared by destroying the Andor Genesis.

Stage Select
When one presses the button on the Kimewaza Slot Holder, without any Gashat inserted in it, the gamer can choose one location from an offered list. This completely rewrites the Game Area, literally teleporting all participants to another battlefield, even pulling in people not present at the location where the function is triggered from. This could be used to expand the fighting area, as well as to protect the original location from being damaged. Clearing a game will return the players to their original location, and being blasted out of a transformation with enough power can "eject" individual players. Some locations include:
 * A modern, bright city.
 * A racetrack.
 * A dark city at night.
 * A blue sky.
 * A beach.
 * A lake surrounded by trees.
 * A millitary shooting area.
 * A scrapyard.
 * A forest.
 * A dried lake.
 * A town square.
 * A hangar.
 * An underground parking area.

Selectable Characters
After inserting a Rider Gashat, Riders select their armor from a spinning array of ten profile images, below ordered in counterclockwise as seen from above. Dan's prototype Gamer Driver can only show the four prototype characters, but also with a unique selectable character:
 * Ex-Aid's Action Gamer Level 1
 * Also used to access Ex-Aid's Maximum Gamer Level 99.
 * When Ex-Aid uses the Knock Out Fighter 2 Gashat, this profile is changed to Ex-Aid's Double Fighter Gamer Level 39.
 * Brave's Quest Gamer Level 1
 * Also used to access Brave's Fantasy Gamer Level 50.
 * Snipe's Shooting Gamer Level 1
 * Also used to access Snipe's Simulation Gamer Level 50.
 * Lazer Bike Gamer Level 1
 * Also used to access Lazer Turbo's Bike Gamer Level 0.
 * Ex-Aid's Action Gamer Level 1 (Proto), unused
 * It is not sure which is the corresponding Gashat to this form, as both Proto Mighty Action X and its Origin version gives access to other forms.
 * Brave's Quest Gamer Level 1 (Proto), unused
 * Snipe's Shooting Gamer Level 1 (Proto), unused
 * Lazer's Bike Gamer Level 1 (Proto), unused
 * Purple generic silhouette with question mark
 * When Genm uses the Proto Mighty Action X Gashat, the profile changed to Genm's Action Gamer Level 1, and moved to the place between Lazer Level 1 and the grayed Ex-Aid image.
 * This profile may reveal on other players' Gamer Driver for unknown reason.
 * White generic silhouette with question mark
 * When Ex-Aid uses the Mighty Brothers XX Gashat, the profile changed to Ex-Aid's Double Action Gamer Level X.
 * After being revealed, it appears in all Riders' available profiles.
 * When Ex-Aid uses the Kaigan Ghost Gashat, the profile changed to Ex-Aid's Ghost Gamer Level 1.
 * When Genm uses the Magic The Wizard Gashat, the profile changed to Genm's Wizard Gamer Level 1 (but showing Wizard himself instead of a Level 1 form).
 * Genm's Action Gamer Level 0
 * Also used to access Genm's Zombie Action Gamer Level X-0.

Kimewaza Slot
By inserting a Rider Gashat into the Kimewaza Slot (it doesn't have to be the Gashat used for the transformation), a Rider can trigger a Critical Strike finisher based on that Gashat, after pressing the button next to the slot twice.

Of note, Genm inserting the Shakariki Sports Gashat into the Kimewaza Slot without pressing the button summoned the Sports Gamer bicycle in his initial debut.

History
The Gamer Drivers, along with the Rider Gashats, were created by Kuroto Dan, CEO of Genm Corp. as a countermeasure to the Bugsters after the occurrence of Zero Day.

When Bugsters began attacking Japan, several riders with Gamer Drivers appeared to fight them.