You're disadvantaging yourself with this mindset! Sure, it may take a little while to get used to how things interact etc, but you should definitely give it a try.
I'm going by memory here, but here's what I think it should be like:
Start with a single voice (looks like it's pretty much just a simple oscillator and a VCA with an ASR envelope), then turn that into a pair that can modulate each other, mixed into a basic filter ("sharp"). That pair then can turn into another pair, perhaps with a bit more cross modulation to make things a bit unpredictable, and then a control for the release of all four voices (I think that's the "hold" control?); you can add a switch for each pair to multiply/divide the signal going into the release to simulate the "fast" switch (again, I've only barely played one so this is going from vague memory). If you then duplicate this group of 4, adding some more cross modulation (all of this modulation should be switchable) you're nearly there.. after that it's just a matter of adding a couple of delays, a distortion, and an LFO routable to delay time/oscillator pitch.
It likely won't be an exact copy, but you could probably get something with a similar feel. I'm actually tempted to try replicating it myself, perhaps on my Nord modular..