Ha Ha Ha!!!!! I beat Pokemon Rangers: Shadows of Almia. At the very end you have to Fight Regigigas.Before you start you should have: 4 Magnetons, Your Sheilgon with a full bar ready to use Partner Pokemon, 101 exp. points, and a Yanma.
Use Sheilgon at the beginning. At the point were you have 50 exp. point or less use a Magneton. The Sheilgon should have done very good if you use him right. When you have no more Pokemon, use the Super Charge thing. It is best to strike when he just finnished a Hyper Beam.





How to catch Celebi:
When you get to the point were you have to run around and try to catch Celebi,catch a Doduo and use him to run around faster and you will eventually run into him. use Sheilgon before he gets a chance to attack.

Before you fight Regigigas, you have to get every single Pokemon. [ exept, of corse Regigigas] Hard Pokemon to catch are the ones in trees. Every tree has a Pokemon. The trees on Union Road have Yanma, The Trees on the path to The Chroma Highlands have Ninjask and the Snow Trees at Shiver Camp have Delibird. For all the trees you need tackle 1 of more.
I hope this helped. Bye!