If you are talking about the cheesy, funky sort of synth lead sound then you can recreate it with just about anything that has at least two oscillators, LFO-> Pitch (aka vibrato) and a lowpass filter.

If I were to take a guess about what synth was actually used then I'd say it was probably an Oscar. ...but by the same token it could've been a Minimoog or any other mono synth under the sun for that matter.

cheers,