Differences from the previous version:

• Acquisition of Grief Seeds specific to each witch (or at least, most witches) upon victory.
• Above Kriemhild Gretchen, Madoka's witch, you can find a battle against the "true" final boss, Ultimate Gretchen, which plays the final battle music from Final Fantasy V (hence the tag).

Tote's video is here: http://www.nicovideo.jp/watch/sm16881859

And muls's final battle music is here: http://www.nicovideo.jp/watch/nm3298058