So as you can tell by the title,this game mode only works in diamond and pearl because of the slow gameplay.This is used to induce rage and wanting to crush you're ds or pc (if you are playing on a rom which i dont think you should since you are not supporting game freak).
1.Must set text speed to slow
2.Must set battle scene on
3.Cannot switch when offered.only after being offered.Basicelly just set battle mode to set.
4.once a pokemon faints it dies.YOU HAVE TO RELEASE IT AND NOT STORE IT.
5.Nicknames are mandatory.
6.Cannot use bikes or running shoes.
7.May only use the pokecenter of each city/town 3 times.
8.Cannot evolve pokemon FULLY.
Good luck! And don't forget to post playthroughs of this!