Most emulators allow you to map keys. Set your joystick to move and a comfortable button for jumping.
: Always look for the .JAR file for the game itself; occasionally you might need a .JAD file for compatibility on specific older devices. super mario bros java game 240x320 free
: A highly recommended source for preserved J2ME games, specifically for those looking for 240x320 versions compatible with old Sony Ericsson or Nokia devices. Most emulators allow you to map keys
If you download the "Super Mario Bros 240x320 Java" game today, you will find several versions. The most common (and best) is typically a fan-made port or an official release by Gameloft or other mobile studios from 2006-2010. : A highly recommended source for preserved J2ME
: When launching a game in J2ME Loader, you can manually set the resolution to 240x320 to ensure the graphics aren't stretched or blurry.