|Features:||Traps foe (poison if contact by some)|
|First appearance:||Boktai: The Sun is in Your Hand|
Spider (スパイダー) 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.
- Poison Spider: Stronger spiders with the ability to spew poison. They have Earth property.
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.