How do you get regice for Pokemon Mystery Dungeon?

Answer 1

first of all, you should be more specific about which mystery dungeon game you are talking about. If it is red rescue team or blue rescue team, after you beat rayquaza,and then Kyogre(when Medicham is in front of your base, talk to her. Then talk to Lombre. Then talk to Whishcash. There are 40 floors in the Stormy Sea) talk to Lombre about a new dungeon. You can now acsess the dungeon in which Regice resides. There are 99 floors in it. After the 10th floor(I think) every 10 floors will be a reji. You should purchase the friend area Buried Relic before you go. After you defeat each reji, you get a piece of them. After you get all of the pieces, they combine to make a music box. The music box attracts mew. Mew's friend area is Final Island. Don't worry, there are many mew in that dungeon.