"It exploded?" Song Jian was flung seven or eight meters away by a powerful force, aching all over, and he didn't even want to get up from the ground;
Many BOSSes, when nearing death, would trigger a self-destruct-like skill. This type of skill could inflict massive damage to both enemies and the BOSS themselves. The BOSS would only use this move if it was at its last resort.
Of course, some BOSSes would flee instead of exploding when they're close to death. They often have a special acceleration skill that could only be used when their vitality points decreased to a certain level. These BOSSes were the most hated by players: they fought for a long time only to let the BOSS escape, a feeling worse than if the BOSS yielded a bunch of useless garbage equipment.