Using midi out from FL studio to 8bit and the velocity settings change the sound completely. Also seems to be playing extra notes? Another video too. : r/sonicware
Game Over: 7 synths and VSTs for making 8-bit video game sounds
Introducing a new and improved 8bit MIDI NES Chiptune Synth • Bent-Tronics
Use your Gameboy as a MIDI instrument - The 8-Bit Guy