is it possible to play it on the 3ds somehow?
because its not an official gb game.
Viewing post in Disco Elysium: Game Boy Edition comments
Dont listen to the guy, there is super easy way to do it.
The only problem is that your 3ds must have custom firmware. To do it go https://3ds.hacks.guide/
Now about rom. You need to download a program. Go here https://gbatemp.net/threads/release-ultimate-gba-vc-injector-for-3ds.438057/
You're welcome.