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MGB 1.34 Cartridge [CHIPTUNE] for Gameboy (Requires Arduinoboy)

$18.00 - $21.50
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Developed by Trash80

mGB is a Gameboy cartridge program that enables the Gameboy to act as a full MIDI supported sound module when used with an Arduinoboy MIDI adapter. It works with the old DMG Gameboy as well as GBC/GBA.

You can choose either the default version that uses MIDI Channels 1-5 or select 6-10 or 11-16.

Pairing the default with the version with the other channels you could realistically run 2 or even 3 Gameboy's off of the same Arduinoboy, each playing a different MIDI channel!

Button Shortcuts

  • Start: MIDI Panic
  • Select + Dpad: Select multiple synths for editing.
  • Select + A: Toggles the screen on or off, better battery life, less noise, and faster response.
  • Select + B: Copys all parameters on screen while cursor is not on preset number.
  • B: Pastes all parameters while cursor is not on preset number
  • A + Dpad: Change parameter value
  • To load/save presets, put the cursor on the "PRESET" number, and hit B for load, Select+B to save
  • MIDI Implementation
  • Note: the name and number at the bottom left of the screen indicates the midi CC of the selected parameter.

PU1 - MIDI CH1

  • Program Change: 1 to 15
  • PB: Pitch bend - up to +/- 12
  • cc1: Pulse width - 0,32,64,127
  • cc2: Envelope mode - 0 to 127, 16 possible steps
  • cc3: Pitch sweep
  • cc4: Pitchbend Range
  • cc5: Load Preset
  • cc10: Pan
  • cc64: Sustain- Turns off note off. <64 = off, >63 = on
  • PU2 - MIDI CH2
  • Program Change: 1 to 15
  • PB: Pitch bend - up to +/- 12
  • cc1: Pulse width - 0,32,64,127
  • cc2: Envelope mode - 0 to 127, 16 possible steps
  • cc4: Pitchbend Range
  • cc5: Load Preset
  • cc10: Pan
  • cc64: Sustain- Turns off note off. <64 = off, >63 = on

WAV - MIDI CH3

  • Program Change: 1 to 15
  • PB: pitch bend - up to +/- 12
  • cc1: shape select : 16 possible on a 0 to 127 range
  • cc2: shape offset : 32 possible on a 0 to 127 range
  • cc3: Pitch Sweep speed. 0=Off, 1-127 speed.
  • cc4: Pitchbend Range
  • cc5: Load Preset
  • cc10: pan
  • cc64: Sustain- turns off note off. <64 = off, >63 = on

NOISE - MIDI CH4

  • Program Change: 1 to 15
  • PB: pitch bend +/-24
  • cc2: envelope mode - 0 to 127, 16 possible steps
  • cc5: Load Preset
  • cc10: pan
  • cc64: (sustain) turns off note off. <64 = off, >63 = on

POLY MODE - MIDI CH5 - Plays Pu1/Pu2 and Wav in poly

  • Program Change: 1 to 15
  • PB: pitch bend +/-2
  • cc1: See cc1
  • cc5: Load Preset
  • cc10: pan
  • cc64: (sustain) turns off note off. <64 = off, >63 = on


If you have your own flashcart you can download the ROM for free here.