Ensure you download the .jar file. Most 240x320 phones (like old Nokia or Sony Ericsson models) only run this format.
If you want to play these on a modern Android phone, you can use the J2ME Loader app from the Google Play Store. 📱
If you are looking for the "Paper" aesthetic, fans often modded existing Java platformers with Paper Mario sprites. Check the platformer sections on Andrew-Lviv . ⚠️ Important Tips for Playing
A widely downloaded fan-made Java game specifically built for 240x320 screens. Available on sites like PHONEKY and Dertz .
If you're looking for a specific or a PC version like " Mario Forever ," let me know! I can also help you find: The best emulator for your specific device