Now that's a nice piece. I'd love listening to it again and again.
It gives off a weird feeling, for me. The sudden change in the song just gives me a sort of image where there's this crazy thing inside someone that just wants to break out. Though it may as well be related to the source of the song.
I like the original best, btw.
I've been thinking lately too... 'Wasurenaide' has been showing up in a lot of songs I've been listening to.