Thanks! Also, as for the programs, i only know of good ol' Graphics Gale. It does support layers however, so you can animate legs below a static head.
Also, today i got my first taste of the actual second boss.
You better believe it's fucking hardcore badassery, because this guy killed the original developer (read: me) of the game 8 times on Normal before i got the better of it. Should probably be toned down a tiny bit, but we'll see. :U