Run code specifically written for that ROM and Emulator, with a single main script Link keybinds to execute functions This was originally designed for the Pokémon speedrunning and glitching scene, ...
Generally, the size of NDS roms occupies 2^n bytes. For instance, if a ROM itself occupies 18 MB, the ROM is feeded with empty blank space at the end to make it 32 MB. This is space it's not necessary ...
Just one week after someone managed to get a Game Boy emulator running on Apple ... all you need is a Nintendo DS, an SD card, an R4 ROM-reading card, and some downloadable data.