Go to the second floor of the building with the scientist that wants a password at Castelia City. Speak to him, then say "Everyone Happy" then "Simple Connection". Save the game. You can now use the "Relocator" option at the main menu to transfer the Legendary Trio (Raikou, Suicune and Entei) and Celebi to Pokemon Black or White.
The Unity Tower is located in the oceans of Unova. To access it, perform an international trade using the Geonet. You then now travel to Unity Tower by getting on the boat at the Unity Pier at Castelia City. The Unity Tower tracks people from different countries available on the Geonet. You can talk to these people and track things about them.
First, weaken the Pokemon you want to catch in whatever manner you desired (HP reduction, status infliction, etc.), then throw an ordinary Poke Ball. When the view zooms in on the Pokemon, use your stylus to trace circles around the Poke Ball symbol counter-clockwise on the touch screen. While doing so, try to find a good median speed to trace with. This will make the contained Pokemon roll more or get captured in one roll. Note: This doesn't always work.
To easily gain experience, after you defeat the Elite Four go to the Giant Chasm with two Blisseys in the back of your party. After encountering the Ditto, send in Blissey. Let the Ditto transform into Blissey, then switch out and defeat the fake Blissey for easy experience.
Find the following items at the corresponding locations:
ITEM - LOCATION Big Root - Found in Pinwheel Forest or 5% chance from a wild Lileep or Cradily. This item increases the HP that results from successful Energy draining moves (for example, Leech Seed). Black Sludge - Has a 5% chance from a wild Trubbish, Croagunk, or Toxicroak or 50% chance from a wild Garbodor. This item restores 1/16th of a Poison-type Pokemon's HP every turn. It damages other types when held. Experience Share - Given to you by the CEO/Janitor of the Battle Company on the Floor 55 in Castelia City. Leftovers - Found in a garbage can under the Village Bridge between Route 11 and Route 12. The Dousing Machine must be used to find it. This item restores 1/16th of a Pokemon's health every turn. Lucky Egg - Given to you by Professor Juniper when you arrive at Chargestone Cave on Route 6. This item gives extra experience points to the Pokemon holding it in any battle it participates in. Macho Brace - Found in Nimbasa City, from a man standing at the eastern gate. This item will doubles the EV points the Pokemon gets in battle but will halves its speed stat. Scope Lens - Found on Floor 47 in the Battle Company in Castelia City. This item boosts a Pokemon's critical hit ratio.
There are two ways you can get either pokemon. The first way is via Heart Gold or Soul Silver, by capturing Celebi and all three legendary dogs and trading them over to Pokemon Black or White. The second way is easier and cheaper. If you have a Gameboy Advance SP, get a game shark and use it to select any pokemon game like,Fire Red, Leaf Green, Ruby, Saphire, or Emerald. Select the Pokemon (Celebi and the three legendary dogs from the Johto region.) and transfer them to Pokemon Diamond or Pearl. When have accessed Palpark, get another DS and transfer them over to Black or White.
Once you've done that, you need to find Zorua and Zoroark. To find Zorua, fly or travel to Castelia city. There is a street to your right or your charecters left based on how you play (the player must be faced away from the pokemon center.) The street is next to the center. Head down that street and go into the first building on the right. In the lobby thereare two people, a boy and a girl. The girl will talk to you and the boy won't. The boy is Zorua. Have Celebi with you. To find Zoroark, fly or travel to Nimbasa city and travel to the path that goes east of the music stadium that leads out of town to one of the big bridges. There is a forest called Lostlorn Forest. Go to the very back to find a truck with a camper. Go inside to find a women that doesn't speak to you. She is zoroark. You must have the three legendary dogs of the Johto region.
Using the Nintendo WiFi connection, get the Mystery Gift (the Liberty Pass) from the main menu before April 10, 2011. Use the Liberty Pass to catch Victini in the dungeon of the tower at Liberty Garden.
Change into the following forms by performing the corresponding tasks:
FORM - HOW TO UNLOCK Arceus - Give a plate to Arceus to have it change form. Deerling or Sawsbuck - Deerling or Sawsbuck will change into their Spring, Summer, Fall, Winter forms depending on the current season based on the system time. Deoxys - Examine the meteor in the museum in Nacrene to cycle through Deoxys' Normal, Attack, Defense, and Speed forms Eevee - Fight enemies near the moss-covered stone in Pinwheel Forest to evolve into Leafeon. Fight enemies near the frozen ice crystal at the bottom of Twist Mountain to evolve into Glaceon Feebas - Trade Feebas while it is holding a Prism Scale (obtained on Route 13) to evolve into Milotic. Giratina - Give Giratina a Griseous Orb from the Shadow Triad on the Marvelous Bridge to change into its Origin form. Karrablast and Shelmet - To evolve Karrablast and Shelmet, trade one for the other with another player. The Karrablast will evolve into Escavalier and the Shelmet will evolve into Accelgor. Magneton - Fight enemies in Chargestone Cave to evolve into Magnezone. Nosepass - Fight enemies in Chargestone Cave to evolve into Probopass. Rotom - Open the boxes in the first door on Floor 1 of the Shopping Mall Nine to change into Rotom's Normal, Heat, Wash, Frost, Fan, and Mow forms. Shaymin - Give a Gracidea (from the woman in the Pokemon Center in Lacunosa Town) to Shaymin to change it into its Sky form.
Go to Raimon City and go to the battle subway. Once inside, go to the brown lined subway and read the small paper. It should say "Kanawa Town Line", then go inside and speak with the man in green. He asks you if you want to go to Kanawa Town. Say YES and you'll be there in no time.
Purchased the following Power Hold items at the Battle Subway:
ITEM - DESCRIPTION Power Weight - +4 HP EV points after every battle, 50% speed stat. Power Bracer - +4 Attack EV points after every battle, 50% speed stat. Power Belt - +4 Defense EV points after every battle, 50% speed stat. Power Lens - +4 Special Attack EV points after every battle, 50% speed stat. Power Band - +4 Special Defense EV points after every battle, 50% speed stat. Power Anklet - +4 HP EV points after every battle, 50% speed stat.