I am covering the tune in a band and would love to be able to get at those sounds live, just for the f of it. I fully realize that people wouldn't care. Although Jam Artis doesn't even bother, so why should I.Any cheap synth like a MicroKorg or iPad setup would get it done. For bass guitar you'd probably want something like the Panda Midi Future Impact.
But really just play it on a regular bass, no one will notice or care.
That's what I was afraid of.There is no cheap way to do it on a bass guitar. The Future Impact is really the only pedal that could pull it off and its $400+. If you do a lot of dance tunes it might be worth being able to do it on keys. Not as fun to play keys though.