It's not that you can never change back to that spirit. It's just "knocked out" for a while since it lost contact with you (I'm not making this up; it's in the little instruction booklet).
After a while you will be able to change back to them.
cockerspaniels that is all.
"Yu-Gi-Oh! GX Spirit Caller" is a Nintendo DS game in which you go through many of the "Adventures" that Jaden Yuki went through and can collect Duel Spirits that you occasionally find.
no you cant
level up!
Dark Zane.
infinite dp 021058cc 000f423f all spirits c0000000 00000002 121058e0 0000ffff dc000000 00000003 d2000000 00000000
search yugioh wikia in google and go to the card ruling section and search for spirit caller......
its the god cards man. or exodia
you face him when he is a shadow rider
he comes in the heros pack
level 10
there is no such a code... sucks