Not purely Wario sounds, but a good number of the 8-Bit sounds used (including the vocal bits) come from Wario Land, as do some of the backing stuff starting around 1:16, the Strings, Choir, and percussive organ in particular are Wario in Wariorigin.
oh yeah, I forgot, I did upload this in some form previously. It's been so long I don't even remember if I added in any Wah's or not.One hell of a cover, but after hearing your previous take on this Rammstein classic, it feels a bit weird not hearing Wario's ''Wah's''.