Subject A001E, which takes the form of a balloon, is an anomaly known as the Deadly Balloon. This anomaly kills in a manner similar to a plant, where it silently consumes the head of its prey without anyone noticing. However, it usually just floats around the Peaceful Zone, and victims of A001E are rarely found.
The Deadly Balloon is classified as an Easy Class anomaly. It can be captured by pulling or holding the string tied to it. Its behavior is unpredictable as it lacks specific traits or habits, simply floating around the Peaceful Zone.
The Deadly Balloon typically resides between the Peaceful Zone and the Survival Zone. It lacks duality, existing in a state that is neither alive nor dead. It moves continuously without ever stopping.
It usually stops moving if it gets caught on something obstructing its path. Capturing A001E does not require a large team; one or two people are sufficient. However, it is important to remember that even the weakest anomaly is still an anomaly, so caution must always be exercised.
In one of the experiments conducted by scientists at the Anomaly Foundation, a human volunteer agreed to be a test subject to understand how the Deadly Balloon becomes angry or attacks humans.
One such experiment involved instructing a person to pop the Deadly Balloon. Initially, no one was willing to do it, but eventually, someone agreed. However, before the person could even pierce the balloon with a needle, their head was gone—swallowed by the Deadly Balloon, which felt threatened and killed the person in an instant.
The scientists then tried another approach, using a machine to pierce the Deadly Balloon with a needle. However, the machine was completely destroyed, with bite marks left on it.
After repeated attempts, the scientists finally managed to pop the balloon, resulting in the immediate death of the Deadly Balloon. The scientists then developed a special containment tube to house live Deadly Balloons. The tube releases a gas that calms the Deadly Balloons, as killing one of them would cause the others to enter Angary Mode. Thanks to the sleeping gas and the containment tube, the Deadly Balloons remain calm.
Once placed in the tube, the Deadly Balloon is moved to an isolation room made of titanium steel and filled with carbon dioxide gas. This is necessary because the Deadly Balloon can trigger sparks from friction caused by its own movements.