Sciser

Scisers are clawed amphibious predators found on Zebes. Some were brought to the Biologic Space Laboratories research station's Sector 4 and Sector 1 and were later infected by X Parasites. Scisers seem to be crustaceous in appearance. When found on their home planet, Zebes, they can be seen following a set, continuous path. The X-infected versions, however, move in repetitive, left-to-right patterns and can shoot energy balls from their claws. They can be found crawling around on the floor, walls, or ceiling.

In certain areas of the BSL station, free-floating X Parasites will spontaneously form a Golden Sciser-X. These are much stronger than their average counterparts, and their claws can block some of Samus' weaponry.