I feel your pain, bro. I went full retard and forgot to thoroughly sanitize the surface of the chip in my Emerald cart before changing the battery and the solder balled up and ran into a component, ruining it. Ruby and Sapphire were a success, at least, but Emerald was going for $125 last I checked.
Here’s an emulator site, bro, there are romhacks or just the base game if that’s your thing
https://www.emulatorgames.net/pokemon-roms/ 
