Sounds like: A fast, clean cascade of notes falling from high to low.
A fast, clean descending run built from the arpeggiator's Down direction: rather than a chaotic or rhythmic pattern, this is a single melodic cascade falling from a wide held chord, used as a transitional impact FX rather than a played instrument voice.
Open this patch in the interactive PatchpadDigitone II's ARPEGGIATOR menu options are OFF/TRUE/UP/DOWN/CYCL: MODE DOWN walks a held wide chord from the top note down to the root. RANGE 3 spreads it across three octaves so the fall has real distance to travel, and fast SPEED at 1/32 keeps the whole cascade quick enough to work as a transitional hit rather than a slow melodic phrase. ALGO 1 routes operator A (and B) into carrier C, so LEV (A) and LEV (B) are set to 0 on SYN page 2 and MIX is -64 (the X output, C only).
Syntakt has no general per-track arpeggiator; SY CHIP's built-in note-cycling stands in. TUNE is set high (the top of the fall) and OF2/OF3/OF4 use negative offsets (-12/-24/-36 semitones) so the cycle steps downward rather than up, the same falling shape as MODE DOWN gives natively elsewhere.
Type Down is a real, literal arpeggiator direction: hold a wide chord and Octaves 3 spreads the fall across three octaves. Fast SyncRate 32nd keeps the whole cascade tight enough to work as a transitional FX hit.
Hold a wide chord spanning several octaves. Osc 1 is BasicWaves with Morph at 50 (pure sawtooth): the Morph knob runs from a square (0) through a sawtooth (50) to a double sawtooth an octave up (100), Sym only changes the pulse width below 50, and Sub adds a sine an octave down (0 here). Mode Down with Octave Range 3 gives the full falling cascade. Values are on MiniFreak's native 0-100 scale.
Typhon has no arpeggiator, but it has a real note sequencer (SQNCR button: 1 to 32 steps over a 6-octave range, with per-step octave, note, gate, velocity, plus probability, division and swing). Program the descending notes directly instead of holding a chord. Fast DVS at 32nd-note divisions keeps the whole run quick. The Filter and Amp ADSR shape each note.
Mode Down is a real arpeggiator direction (one of Up, Down, Up / Dn, Up & Dn, Order, Random, Chord, Phrase). Octave Mode Down and Octave 3 spread a wide held chord's fall across three octaves at a fast 1/32 division.