Directional Pad: Also known as the D-Pad, this pad can be pushed up, down, left, right. When a cheat says to press "up" without being specific as to which part of the controller to use, it's usually this one.
B Button: Located on a back side of the Wii Remote, a popular button used in many cheats.
A Button: A popular button used in many cheats.
Home Button: Used primarily to access the Wii Home Screen.
Plus (+) and Minus (-) Buttons: Popular buttons used in many cheats.
1 and 2 Buttons: Popular buttons used in many cheats.
Analog Stick: Located on the Wii Nunchuck, this stick can be pushed up, down, left, or right, or diagonal in any direction.
Z Trigger: Located on the Wii Nunchuck, can be used either before or during the input of cheats.
C Button: Located on the Wii Nunchuck, a popular button used in many cheats.