X-Men Season 4 Episode 16

Versions aired in countries other than the US feature a number of slight differences:
- Overlay warp effects on the portal above the mansion, and in the astral plane, aren't used, meaning this version wasn't entirely finished before being released.
- Xavier's hug of his mother happens too soon, and thus, his mouth moves for her lines.
- The flashback clips to the early days of the X-Men and the danger room scenes are in full color instead of black & white.
- Angel's final costume shot is colored red, instead of blue.
- The flashback to the X-Men's defeat earlier in the episode isn't black & white either.
- Shadow King's mist-head flies sidewards toward Jean & Xavier on the astral plane, using very stiff animation in one smooth transition to his appearance over them, instead of what appears to be a still shot of him superimposed over the background intercut with his head already having arrived.
- Jean & Xavier's astral forms don't remain over the portal when Shadow King turns away from them on his asteroid platform.
- The astral energy between Xavier and Jean when defeating the Shadow King is less fluid.
- The portal closing on the SK lacks the warping effect.