Battle Bingo In GBA

[ZiggyPokedust]

So for my coming hack, one of the things I wanted to try out was incorporating the Battle Bingo game from Pokemon XD and I kinda want to know how I would go about this. Is it even possible? Would it be particularly difficult? I appreciate it in advance

 

[ZiggyPokedust]

I think that would require disassembly and coding. It would be no easy task to create a minigame from scratch, I would think.

Thank you,

Well yes, lemme rephrase my question though so it can maybe be more clear what I am asking. With Battle Bingo, you start with a rental Pokemon, and you can catch other Pokemon that would join your party and have their commands, but then after the Battle Bingo you return all those Pokemon. Since these are all essentially rentals, I guess that is my main question of how that would all go about