250 A minute probability: Silver key!

Sheyan had successfully slayed one of the rare elite hydralisks. Yet in the process, Boiling had absorbed most of the flamethrower's impact, hence the other hydralisk 'Dense-acid' only received the relative amount of flame damage. It was far from a mortal wound; combined with the marine's repeated gunfire, Dense-acid still held with roughly half HP. After regaining focus, Dense-acid witnessed personally the tragic sight of its comrade being fried alive. Fuming with an unquenchable acidic rage, its lymphatic tubings swelled excessively; pumping the acid aggressively into its abdomen cavity, as the flesh expanded tightly to its very limits!

Pssshhh! A blast of thick greenish sulfuric acid catapulted out of its body, climbing to a fanatical speed of 730 metres per second; guided straight towards that damnable human's face!

Die ! Die ! Die!