|Negative Karma Ball|
Mainasu Enerugi Pawā Bōru
|Alternate names||Minus Energy Power Ball|
|Debut||"Super Saiyan 4 Fusion"|
|Similar techniques||Death Ball|
Revenge Death Ball
Shocking Death Ball
Negative Karma Ball (マイナスエネルギーパワーボール) is Omega Shenron's most powerful attack. Omega Shenron pushes his chest forward, channeling pure negative energy through the dark-blue Dragon Balls on his chest. Small red streams of energy fly out and start to form a crimson energy sphere as it expands many times its original size. Omega Shenron condenses the sphere to about the size of his body and launches it at the opponent, inflicting a huge amount of damage.
Omega Shenron first uses this attack in an attempt to destroy Super Saiyan 4 Gogeta and the Earth. However, Gogeta teleports in front of the Negative Karma Ball and channels some of his positive energy into it as he kicks it up into space. This changes the Negative Karma Ball into a positive energy sphere (with a blue color) that soon creates a nuke-like explosion upon leaving the Earth's atmosphere, which removes all traces of the dark clouds covering the Earth.
Omega Shenron later uses it against the weary Goku and Vegeta, which nearly kills the former. Omega Shenron uses the Negative Karma Ball on Goku again while he is holding the Universal Spirit Bomb, but to no avail.