|D-Rank Arm Cannon|
|Function||Supposedly fires an electromagnetic beam, but is deemed as useless against living and organic material.|
|First Appearance:||Ratman Chapter 4|
Both D-Rank Heroes are shocked and disgusted when their Killer Moves fail to stop a relatively weak 'criminal.' This suggests that they are not familiar with the limitations of their weapon.By the time of the Hero Booster Arc, both have their weapons and powers upgraded to the point in which their strength and cannons can now do serious damage and can give Van Guardner and Ankaiser some problems in handling them. At this time, their cannons are powerful enough to blow up a cargo truck and would be considered as equivalent to Ankaiser's Dragon Cannon. The weapons become further upgraded with another infusion of Dark S Gene energy, making them capable of heavily damaging a portion of a city block. At this level, the cannons are about equal to Ratman's Breath Laser, causing Van Guardner's upgraded shield powers to being pushed to their limits. Once they receive the counter-program to the Hero Booster, the two are restored to normal and their weapons revert back to their original and weaker designs.