Capture Arena
you just need to find you leader, then you can go to kincaids en you need to capture drapion
The Pokemon is Ralts and you can find it in the first room in the Wrecked Ship once you crash it near the Ranger School.
Pokemon 267 is Regigigas. After obtaining all 266 pokemon, you will find him in Hippowdon Temple in the room with the tiles with arrows on them. There'll be a whirlpool in the middle of the room. Go in; you'll find that you need to catch Regirock, Regice and Registeel to get to him. Once you do, be careful as Regigigas is a very hard capture.
Lickilicky - you can find him in Kincaid's room on the crashed boat
R-125 is Camerupt, and it is found in a little room in Crysta Cave.
if its ices go back to the icy floor and go to the left and right rooms ull find riolu in each and capture them then go back ices room and go to the blue barrier and use riolus power then capture lucario
you have to catch every other Pokemon in the game and have the 3 regis WITH YOU. then you should find him in hipopowdon temple in the maze room in some quick sand.
at the dusk factery after you turn off the power in the room were the mr.mime apear
You get them at the room with the cracking ice on the left and right room.
That would depend on the Pokemon Ranger that you are playing however it cannot be found in the orignal Pokemon Ranger game, in Shadows of Almia you can find it in the Vien Forest however if you are collecting it as part of one of the quests then you should go get it after you get Glaceon as your first Pokemon and and in Guardian Signs you can find it in the post game by going to the Sky Fortress and going to the back room of the 2nd floor.
Go to the next room. Ice mentioned a strong Pokemon ahead guarding the Blue Gem. It happens to be Lucario. After you capture it, then a warp hole will appear, allowing you to get back to the entrance.
There is one in your home room, you have to break the boxes with bidoof to find it. There is one in that room nextdoor, it shows you where it is when you enter. There is one in the teachers lounge, you have to catch the Pokemon to find it. Then there is one in the library, you have to break the boxes to get to it. That is all four.