Wow! Been meaning to see this movie...now I have to! Reminds me of the movie Legend with Mia Sara's 'dark' Lily.

Weird Germans with their dancing evil robots.

Couple of loose conversions from the final incarnation of the Sailor Moon anime the Star series...Doom, gloom, and violence...wish they kept up with those themes may have actually enjoyed the series...

Sailor Uranus and Neptune change sides. Involves more or less voluntary conversion and no TF but its entertaining. A minor costume change would have been nice...
http://www.youtube.com/watch?v=uJP2Njy_cTE

Sailor Galaxia TF to Chaos Galaxia. Great character. German dub.
http://www.youtube.com/watch?v=cVQ0NuNYryA

Wow, I'd totally forgotten about Mirrormask's evil transformation... Good job! There's one in Legend, too. I remember the transformation happened abruptly, but it was still pretty hot.

The manga arc for Sailor Stars was pretty interesting with Galaxia turning most Senshi evil :D and I cant help but to like the manga seeing as there is hardly any of that reasoning with the bad guys that the anime had.

Found the Legend scene...This movie freaked me out when I was a kid...This scene most likely contributed to kick starting this fetish for me...

http://www.youtube.com/watch?v=B24gRdNVyaI

Tamara-
http://www.youtube.com/watch?v=afdklAvGRT0

There's some mind control, and I haven't seen the movie myself. I thought I might try and make a contribution to the thread anyway. Apparently the main plot is a geeky schoolgirl gets killed by a prank gone wrong and comes back through the use of some spell as an evil witch. Seems kind of cheesy and something of a horror flick, but I figured this kind of thing would fit in here. I haven't seen the movie, but I don't think there is any process to the whole thing either.

By the way, this is my first post. ^^;

Earlier in the manga Chibiusa also transform into Black Lady APs. Saturn evil conversion is more detailed, it involves hair growth if I don't remember it wrong, and last a few pages.

I only made extracts for the age switch between both Usagi. The problem is that the Chibiusa arc last quite long, and the process is too brief, which leaves me with posting a few pages, or the entire arc, which is quite long, though in the revert she doesn't AR immediately.

First post for me too :)
No, there's no process. One scene she's dead. The next scene she's alive, tarted up, and evil.

With the whole Vocaloid mania going on right now, I thought I should post these.

The following are more related to mental change, from this h-game that is getting released later this year. Based on the art it looked like one of those "training" themed ones. The last result seems to be the more sexified/dominant/sinister one.

Got a link to the HP? That game looks awesome.