Can't really hear it myself, but the little beeps in Tainted Love remind me a bit of that sound when Wario has only one heart left. But it might be possible. Remember, there's a song called Soft Shell in that game. Might be a coincidence, but it might also be a word play on the band's name.
Wario Forums
Just a Wario Fan
tahutoa
The sound at the very very beginning. That squarish synth with the reverb on it. We may be talking about the same sound though 