Battle Balls are objects used to activate the gang's power to defeat villains. It is known as a power-up so they can defeat villains in their path.
A few years ago, battle balls were used by Memnock and Zenblock as the Virus was recently unleashed. It is unknown who created the first battle ball but it is implied to be a member of Mem and Zen's species as their battle balls look vastly different from that of other virus warriors ands seem to be prototypes. Millions of people were recruited to be virus warriors, including Mem and Zen as they were recruited by an unknown master.
Mem and Zen were eventually partnered up by the Benevolent Alliance for the mission of bringing down the virus once and for all. They were tasked by the Benevolent Alliance to recruit powerful soldiers and warriors from Earth when the virus was starting to infect many of its organisms. Things started to go awry for both Mem and Zen when they reached earth as the first thing they saw that they interpreted as soldiers were four kids wearing paintball gear and playing paintball with their names being Kevin, Shope, Tyler, and Roach. Mistaking them as potential allies for the fighting against the virus' threat, they gave the Noobs power balls and ended up scaring them in the process. Seeing their error for mistaking them as warriors and later having a few observations on the human kids who turned up neither mature nor ready for their job against the virus' threat, Memnock and Zenblock felt that they couldn't trust the human kids to defeat the virus. They tried to get the Benevolent Alliance to revoke the battle balls from the four children in an attempt to correct their mistake but could not do so and they were tasked with taking care of the four kids while training them until they proved that they were capable of fighting the virus on their own. The battle balls have powers that prove to be beyond anyone's imagination as they have powers such as mind reading, control over natural elements, transfiguration, and flight. They can also be transformed into anything of their wielder's desires such as a sword, an extractor gun, and a hoverboard. The battle balls are also capable of doing things that those who wield them do not even know about. They are also revealed to protect its users from very deadly blows and situations through generating a strong force field but this depletes the ball's energy and makes it inactive for some time until it fully recharged. However these weapons have a cost for wielding them as it can mutate anyone's DNA and require them to have the balls in their possession at all times or else they will shrivel up like fruit.
- The Battle Balls are most likely a reference and homage to keyblades from the video game series Kingdom Hearts as like battle balls, keyblades can transform into other weapons and vehicles and enhance their users abilities and powers. The battle sword used by virus warriors is also a kingdom hearts reference.