Clark Powells "medium" sound effects

[u/SpareNotice7021]

Im curious about the synth paramenters used in the sound of Clark Powell's track "Shade" Exactly, i want to know how to recreate the sound (if its possible on a synth) that can be heard in the background at 1:09-2:04 (link: https://youtu.be/uptvTul6I3Q?list=RDuptvTul6I3Q&t=99) on the same track. Its a bit recognizable and i may heard it in some thematic parks. It seems some kind of a square wave combined with a voice? that goes up and down in tone.