The internal synthesizer features one voltage-controlled oscillator with simultaneous saw, square/pulse-width and sub-octave square waveforms.

Additionally there is a 24dB Low Pass filter, an LFO and a single ADSR envelope generator.

In terms of circuitry, it is nearly identical to the earlier SH-101 synthesizers but lacks the noise generator, choice of LFO shapes and modulation/pitch bend controls.

The two units also share a design aesthetic in terms of the control layout, casing, lettering, knobs and slider caps.

Version 2 of the software (released in 2009) also allows sequences programmed directly on the MC-202 to be converted back into MIDI files.