Sword Vipers are mass-produced "Cyber Golems" manufactured for the defense of "Venom Dancer". They use weapons which can inject an unknown toxin same as that used by "Venom Dancer", so melee combat with Sword Vipers is not recommended. Sword Vipers are able to perform Lock by combining forces together, making them bothersome mechas horrifyingly specialized for disrupting their enemies.
Who are the Star-vaders?
The forerunners of "Link Joker", which is the incarnation of "Void" and the invaders threatening Cray. Their main mission is to investigate the indigenous creatures and collect the data of powerful beings, and dominate their bodies if possible. However, it is said that they would annihilate weaker beings in the process, finding their data not valuable enough to be collected. They possess multiple technologies that do not exist on Cray, and can manipulate the mysterious power "Lock" freely.