Crashbug

The Crashbugs, also known as Bugmen in OCG, are a family of four DARK Fiend-Type monsters introduced in Generation Force and used by Ukyo Kitano in Yu-Gi-Oh! ZEXAL. When the three weaker Crashbug cards are assembled in the Graveyard, the family's trump card can be Special Summoned.

Play style
The three Level monsters in this family, "X", "Y", and "Z" each possess a similar effect to some of the Piece Golems; they can all Special Summon another "Crashbug" so long as a correct "Crashbug" is already on the field when they're Normal Summoned. "Crashbug X" will Special Summon "Z" if "Y" is on the field when it's Normal Summoned, "Y" will Special Summon "X" when "Z" is on the field when it is Normal Summoned, and "Z" will pull out "Y" if "X" is already on the field when it's summoned.

The trump card of the family, "Super Crashbug", can Special Summon itself in Defense Position by removing X, Y, and Z in your graveyard from play. Not only does "Super Crashbug" have 3000 DEF, the highest of any Level 4 monster, but when it's switched to Attack Position its ATK becomes swapped with its DEF, making it a 3000 ATK monster.

These cards benefit greatly from the use of "Number 34: Terror-Byte" due to its high DEF as well as its summoning requirements. After playing the three "Crashbug" monsters they can be used as "Xyz Materials", providing a powerful monster as well as fuel for a "Super Crashbug" afterward.

Monsters

 * Crashbug X
 * Crashbug X
 * Crashbug X
 * Crashbug Y
 * Crashbug Y
 * Crashbug Y
 * Crashbug Z
 * Crashbug Z
 * Crashbug Z

Spells

 * Crashbug Road
 * Resonance Device
 * Level Limit - Area B
 * Monster Reborn
 * Allure of Darkness
 * Double Summon
 * Infected Mail

Traps

 * Gravity Bind
 * Ultimate Offering
 * Level Limit - Area A

Extra Deck

 * Number 17: Leviathan Dragon
 * Submersible Carrier Aero Shark
 * Number 34: Terror-Byte
 * Grenosaurus
 * Leviair the Sea Dragon

Trivia

 * Each of the level 3 "Crashbug" monsters have bombs for heads.
 * Crashbugs "X", "Y", and "Z" appear to be dressed in prisoner-like accessories.
 * X - A ball and chain on its neck.
 * Y - Hand cuffs on its right hand.
 * Z - A striped prison uniform, along with a ball connected to a chain locked to both its ankles.
 * This Family is similar to that of the "Gadgets", "Piece Golems", "Poker Knights", "Magnet Warriors", and "Reactors"; due to having only 3 members which contribute to the theme's trump card.
 * Also, the letters of their names, when placed together alphabetically, form "XYZ", referencing their use to Xyz Summon "Number 34: Terror-Byte".
 * In Japanese, "Bugman" could be a pun to Bomb (爆弾, Bakudan) as they have bombs on their heads.