The Spider is a common enemy present in all Boktai games. They are giant spiders that crawl around and spin webs in the room. If the player gets caught in a web, any nearby Spiders will come and attack him. The webs aren't visible in dark places, but light can reveal their location.
The spider just have one variation that are the Poison spider, stronger spiders with Earth property and the ability to spew poison.
In Boktai 1 and Lunar Knights, spiders can't damage the player by touching him.
Spiders are air-breathing chelicerate arthropods that have eight legs, and chelicerae modified into fangs that inject venom. Spiders are found world-wide on every continent except for Antarctica. Spiders of varying size and species appear as enemies in several fictional stories.