In Demon Seige, how and where do u use the purple orbs? I do not remember what it is called, but it looks like an orb but it has something to do with wind.Its gray.
Purple orbs are collected so you can turn onimusha. There's a gauge around the life bar. I think it takes five orbs, then you can press start (?) and power up for a limited time.
Is the white orb on a door? If so, you should equip the Kuga then try to open it.