Canodumb

Canodumb (キャノーダム) is a virus in the MegaMan Battle Network series made up of a cannon on a base. These viruses cannot move, but they attack when MegaMan moves into the same column as them. The Cannon series of Battle Chips can be obtained from Canodumbs. 

Canodumb Family
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Canodumb

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 * width="35px"|Canodumb1.png
 * Canodumbs are green and have 50 HP in the first game and 60HP in later games. When a NetNavi stands in front of them, they send out a cursor. If the cursor comes in contact with a target, it will fire its cannon down the row of panels.
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Canodumb2

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 * align="center"|Canodumb2.png
 * Canodumb2s are blue, have 90HP and work much the same as Canodumbs except that their cursors move fast and deal more damage per hit.
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Canodumb3

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 * align="center"|Canodumb3.png
 * Canodumb3s are red and have more HP. Their cursors move much quicker than Canodumb2's.
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CanodumbΩ

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 * align="center"|CanodumbSP.png
 * CanodumbΩs (appear only in MegaMan Battle Network 3) have an orange color and are very upgraded compared to any other Canodumbs.
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Trivia

 * Canodumb also had short appearances in the anime MegaMan NT Warrior. When the Cannon Battle Chip is used in the anime, it can be used either as a cannon in the NetNavi's arm or to summon a Canodumb.
 * The Cannon chip is almost always in every Battle Network game.... Despite the fact that the virus shown in the chip didn't appear consistently, unlike Mettaur (however, Mettaurs changes variety in their chips every installment...)