im definitely gonna make it that you can challenge red and blue post game, then they do a double battle with you.

You should let trainers fight in battles when all of their pokemon are knocked out.

you mean when they ate all out of pokemon, they just try and kill eachother? genius.

What if you made a item that turns you into the player from the other game and it also lets you get the special Pokemon from that game?

you are so smart, Lucash!