Calibration within the DSi System Settings ( System Settings -> Touch Screen Calibration ) can often resolve this. Conclusion
The intersection of and top screen layout optimization represents the absolute peak of Nintendo DS and DSi emulation accuracy. As open-source emulators evolve, melonDS stands out as the premier application for preserving the dual-screen handheld era. However, moving beyond basic commercial DS ROMs to unlock full Nintendo DSi firmware capabilities, system menus, and DSiWare requires a deep dive into the system's core flash memory file: the nand.bin . nandbin melonds top
Tools like dsi-nand-gen (available on GitHub) can generate a NAND from almost scratch. This can be useful for recovering from "bricks" or testing, but for a proper retail experience, a dumped NAND from an actual DSi is recommended. Calibration within the DSi System Settings ( System