It's a real pain to program it, and I have used it in a way where it glitched and utterly broke the game. Also, I don't think it was really necessary for the game anyway. So I'm going to remove it.
I was, however, able to get it to work. It's just annoying to program for.
However, I didn't want all that effort to go unseen. Here's how the possession attack would have functioned in the game.
Sorry.
====Additions======
-Possession functioning (soon to be removed)
-Step 1: Weaken the Seeker's health to 200 or less.
-Step 2: Press Enter to begin possession. You are invincible during this time.
-Step 3: Take control of the Seeker and it will begin attacking automatically.
-To Exit the Seeker, press Enter again.
==============Some of my Games and Ideas===========
Sky Warrior: http://www.alice.org/community/showthread.php?t=6291
Health Bars: http://www.alice.org/community/showthread.php?p=36968#post36968
Sky Warrior: Dual Force: http://www.alice.org/community/showthread.php?t=7174
Want to make your own space game? http://www.alice.org/community/showthread.php?t=6389