Regain health during a fight

You can regain health during a fight two ways: Continuosly press the Z 
button while away from your opponent. or hold down the Z button, and 
rotate the control stick. Both ways will help you get back some of that 
much needed health!

Big gloves

For big gloves, pause the game and press C-Up, C-Down, C-Up, C-Up, and 
C-Down (you should here five bell rings if entered correctly).

Big head

For a big head, pause the game and press C-Left, C-Right, C-Left, C-Left, 
C-Right (you should hear five bell rings if entered correctly).