Sync Protocol - RainMz/NintendoClients GitHub Wiki Pia > Protocols > Sync Protocol ID Description 0x01 Start message 0x02 End message 0x03 Start end message 0x04 End alone message 0x11 Start ack 0x12 End ack 0x13 Start end ack 0x14 End alone ack 0x21 Data message (raw) 0x22 Data message (compressed)