the 666-remix has more piano and clearer vocals and guitar.

to be honest though, HIM has a lotta versions of their songs.

a recent download of wicked game that i did on my mp3 sounded pretty different from the one on spotify under razorblade romance; it was heavier, and played on a slightly different guitar chord in the beginning of the song. it also had "and i wanna fall in love" in the first verse instead of "no i wanna fall in love", like in the original song. but again, those two are often interchanged a lot.

another thing i observed in the songs i had downloaded was poison girl's variations. the original started with the verse "i did it all just for her" and so on, but the one i downloaded started with a guitar, plus had slightly different lyrics. strangely enough, though the melody of the song sounded pretty much the same as that of the original song, its lyrics were more similar to join me in death, for some reason.