The bomb created by Dark Kat in the alternate universe using the stolen Mega-Detonator. If used correctly, it would disintegrate whatever it hit. It was intended to be used to destroy Enforcer Headquarters by the evil SWAT Kats. However, the good SWAT Kats managed to use the cement machine gun to stick the bomb in the other Turbokat’s bomb bay, so that when it detonated, it went off while still attached and disintegrated them and not the intended target.
The actual name of the bomb and exactly what it does is only revealed in the script.