Akiko's Frying Pan card
Enter offline free battle mode. Find the man that love toys and
cider. He is standing in the room in front of a locked door green
hallway. His name is Ratts. He wants you to find "Real Cider" for
him. Go to the middle of the morgue and talk to one of the men with
the helmets. He will give you Homemade Cider. Take this back to the
Ratts and give it to him. He will not like the cider and tells you
again that he want "Real Cider". Go to secretary and you will get
fifty Cakes. Take it to him. He will not like the bribe and will not
give the Cakes back. Go to the middle of the morgue and talk to one
of the men with a rifle on his back. He will give you a Vintage
Cider. Take this to Ratts and he will not like it. Go to the middle
of the morgue and talk to one of the men with the helmets. This time
it is a different one and he will give you a Name Cider Nut. Go to
Ratts and he will give you Precious Cider. Take this Precious Cider
back to the man you got the Name Cider Nut from. Then, take the
Treasured Cider to the Ratts and he will make his apprentice. You
now have to look for his three apprentices. They are located in the
following locations: where you load your game (red hallway); next to
mission/quest teleporter (man with a helmet, blue hallway); and
close to lab chief (purple hallway). Go to Ratts and he will give
you Ratt's Autograph. Finally, go to story mode and talk to Ratts.
He will give you the Akiko's Frying Pan card.

Nano Dragon card
Use a memory card with a saved game file from Phantasy Star Online
Episode 1 And 2.
Rage card:
Use a memory card with a saved game file from Sonic Adventure 2
Battle.
Sange card:
Use a memory card with a saved game file from Sonic Adventure DX.
Sonic Knuckle card:
Use a memory card with a saved game file from Sonic Heroes.
VIP card:
Naming your team online VIP will increase your chances of getting a
VIP Card.

Hint: Deck choice
Depending on your Section ID, your deck selection should be
different. Whether you get new and rare cards depends on your
Section ID, which corresponds with the deck you choose.
Blue Deck: Yellowboze, Bluefull
Red Deck: Pinkal, Oran Skyly
Green Deck: Purplenum, Redria
Black Deck: Viridia, Greenil, Whitil
Also, certain decks have different card bases:
Blue deck: General cards
Red deck: Monster cards
Green Deck: Action cards
Black Deck: Weapon cards

Dressing Room
Complete both the Hunter and Ark storylines in Story
mode (offline) to unlock the Dressing Room. It will disappear after
each use, but will reappear again each time either the Hunter or
Arkz storyline is completed once more.
Chair in Lobby:
Hold X and press A or B while standing in an online lobby to create
a Photon Chair that matches your character's Section ID. Press A to
move forwards or use the Analog-stick to turn. Press B to get rid of
the chair.
Billy Hatcher And The Giant Egg trailer:
Note: This trick requires a Gamecube keyboard. Hold B + G at the
title screen to replace the introduction sequence with a trailer
from Billy Hatcher And The Giant Egg.
Control loading screen:
Use the Analog-stick to change colors and/or tap A to make a chime
at the loading screen.

Beat card
Use a memory card with a saved game file from Sonic Heroes. Select
Story, Free Battle, or Online mode, then go to the trading machine
and select the "Search Event Files" option.
Clippen card:
Use a memory card with a saved game file from Billy Hatcher.
Halloween Rappy card:
Use a memory card with a saved game file from Sonic Heroes.
Madam's Umbrella card:
Use a memory card with a saved game file from Sonic Mega Collection.