I think the trick is combining the right filter settings with the right type and amount of distortion. Try this:
Oscillator: Saw
Filter: Lowpass 24 dB. Bring the Cutoff a bit to take off the top but still leave a bright sound. Then give it quite a lot of Res.
Distortion: Crank it
Voice: Legato with modest Portamento to get the notes to bend into each other
Reverb: A little wet, very big.