: Use .gdi or .chd files. Avoid .cdi if possible, as they are often compressed/stripped versions of games designed to fit on standard CDs back in the day.

: Many emulators allow you to force a 16:9 aspect ratio, often with specific codes to prevent image stretching. 🎨 Visual Enhancements

NullDC on Android – is “extra quality” build worth it?

Mastering Dreamcast on Android: Is nullDC Still the "Extra Quality" Choice?

: You can download community-made texture packs for classics like Sonic Adventure or SoulCalibur

, which became the standard Dreamcast emulator for Android for many years before

: nullDC was originally a famous Sega Dreamcast emulator for Windows. In 2010–2011, developer drk||Raziel released an alpha version for Android, which was groundbreaking at the time as it showed Dreamcast games running on mobile hardware.