From Dragon Ball Wiki, the ''Dragon Ball'' encyclopedia
Energy Mine is one of Android 18's strong Ki Blasts and ultimate attacks in Dragon Ball Z: Super Sonic Warriors 2. She fires a concentrated, yellow Ki sphere that, after a few seconds, results in an explosion, inflicting heavy damage.
Ultimate Attack Version – She punches her opponent four times, summons five Energy Mines from five directions, and then hits her victim explosively one more time. After that, 18 teleports away and all five Energy Mines explode on the victim, inflicting heavy damage.