The three Level 3 monsters in this family, "X", "Y", and "Z" each possess a similar effect to some of the Piece Golems; they each Special Summon another "Crashbug" so long as the other "Crashbug" is already on the Field when they're Normal Summoned. "Crashbug X" Summons "Z" if "Y" is on the Field, "Y" Summons "X" when "Z" is on the Field, and "Z" Summons "Y" if "X" is on the Field.
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. Another possible Xyz Monster that can be used is "Number 17: Leviathan Dragon", while it will lose its Attack if "Super Crashbug" arrives, it only requires two Level 3 monsters to Summon and it can become a 3000 ATK monster while also guaranteeing the ability to detach its Xyz Materials. With "Number 34: Terror-Byte", it will have three possible Crashbugs attached and not be able to lose them because the opponent is not placing any Level 4 or lower Monsters on their Field.
When combined with Terror-Byte, this archetype makes a reference to a computer virus. When the virus first appears (Summoning one of them), it infects the system (special summoning the rest of them), then it steals data (taking control of opponent monsters with Terror-Byte), and finally sabotages the system (Super Crashbug switching ATK and DEF of monsters).
In Japanese, "Bugman" could be a pun to Bomb (爆弾, Bakudan) as they have bombs on their heads and a reference to how when a computer has technical difficulties, it normally means it "has a bug".
The Crashbugs' fuses are removed in the English card artwork due to the fact that it is a reference to violence, but strangely in the dub, the fuses remain in place.
All the Level 3 "Crashbug" monsters have the letter in their name on their clothes.
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