# Guide: melonDS ### melonDS Links: [melonDS - Webpage](https://melonds.kuribo64.net/) [melonDS - Forum](https://melonds.kuribo64.net/board/) [melonDS - FAQ](https://melonds.kuribo64.net/faq.php) [melonDS - Wiki](https://github.com/melonDS-emu/melonDS/wiki) [melonDS - Github](https://github.com/melonDS-emu/melonDS) ## Where to put the games NDS games should be put under the `retrodeck/roms/nds/` directory. ## What file formats are supported? ``` .nds .app ``` ## Does MelonDS require BIOS or Firmware? There exists several optional BIOS and FIrmware: **Nintendo DS:** ``` bios7.bin bios9.bin firmware.bin ``` **Nintendo DSI:** ``` dsi_bios9.bin dsi_bios7.bin dsi_firmware.bin dsi_nand.bin ``` ### Where to put the BIOS and Firmware? Directly into the folder `retrodeck/bios/` **Example:** `retrodeck/bios/bios9.bin`