Sounds form this track

The first sound (bass) is a square oscillator through a closing lowpass filter.
The second sound (lead) is indeed a saw, similar to the init patch but the second oscillator is not there to detune it.
What's common to both sounds is that they are fifths. You can create fifths by either playing power chords on the keyboard, or by making osc2 be identical to osc1, only +7 semitones.
Hope this helps.