Fast Purification
When you have unlocked Mt. Battle go there with your Shadow Pokemon, then start a new Challenge. You will still be able to go back to where you left off, and keep using Shadow Rush and when your pokemon goes into Hyper mode call it's name, it will go out of Hyper mode and it's heart will open further and when it succeeds don't worry about getting hit with recoil, after every battle your Pokemon will be restored to full stat (except Hyper Mode if you didn't manage to call in time).
Submitted by GR0UD0N.
Ho-oh
Purify all 48 Shadow Pokemon, Beat 100 Trainers on Mt. Battle using only your team from story mode, and you must have a vacant spot in your PC.
Submitted by GR0UD0N.
Awakening Pokemon
To get Pokemon up from sleep, simply call them during their turn.
Submitted by GR0UD0N.
More Ways to Purify Quickly
Get the Time Flute and call Celebi. When Shadow Pokemon see Celebi, they will become purified. Alternately, get the Time Flute to Jirachi to do the job.
OR
Get the Cologne Case and buy about eight Vivid Scents. Then, use them on a Shadow Pokemon.
OR
To purify faster, battle at the Phenac City Pregym. Battle as much as needed. Then, go to the construction site that looks awful and keep going through the paths. Note: You can always go to the fountain in Phenac City.
Submitted by GR0UD0N.
Ein
To get the code for the locked door in Ein's Lab, get all three DNA samples and identify them all with the DNA machine inside one of the rooms in the lab.
Submitted by GR0UD0N.
Master Ball
After you have the badges you will get an email from Eagun. Go to him in Agate Village. Talk to him and you will receive a Master Ball.
Submitted by GR0UD0N.
Go to: Pokemon Colosseum Info Page | nGaming Home Page.