If you still have a Nokia or Sony Ericsson:
| Emulator | Platform | Notes | |----------|----------|-------| | J2ME Loader | Android | Best option. Supports 240x320 scaling, virtual keys, saves. | | KEmulator | Windows | Old but works for debugging and gameplay. | | FreeJ2ME | Windows/Linux | Modern libretro core (RetroArch). | | SquirrelJME | Multi | Experimental but accurate. | | EKA2L1 | Win/Android | Runs Symbian Java games too (some Ruby versions). | pokemon ruby java games 240x320 jar
Often labeled "Pokémon Ruby EX."