Mystery Gifts
Select the Self Introduction area of your profile and type the code for the gift you desire. You can earn the Pokemon Magmortar and Electivire by typing "B416-X4HT-VTWF" and "BA16-X4SH-E2AT", respectively.
After defeating the leader of the Stargazer Colloseum, the Poketopia Master, a gift will appear in the Mystery Gifts area of the shop. Download this to your "Diamond Version" or "Pearl Version" game to gain a level 10 Pikachu.
Battle Passes
Several battle passes are available throughout the game that allow players to progress to different levels. Typically this involves completing a colloseum or rank. To earn the Groudon Red, Kygore Blue or Rayquaza Green passes, you must collect 20, 40 or 60 online friend passes, respectively. Defeat 50 opponents in the Courtyard Survival Challenge to earn the Pearl Wave pass. Defeat 100 to earn the Diamond Dust. Completing all eight sets of the Stargazer Colloseum master battle will earn the Ball Collection.
Bonuses
Like battle passes, many bonuses require players to complete a colloseum. These include the Pikachu hat, bag, outfit and face paint. Defeat the Crystal, Magma, Waterfall, Sunset, Main Street and Neon leaders with the Level 50 All Rule in effect to earn special outfits.
Easter Egg
The background of the Sunset Colloseum is a replica of the Orre Colosseum from "Pokemon XD: Gale of Darkness." The Orre Colosseum is a desert-based area known for its difficult battles in the previous installation of the "Pokemon" console series.