Change Announcer's Voice
Go to the Options screen. Hold C-DOWN and Press R to bring up a menu at the bottom of the screen. Hold C-UP and press R. The more you do this, the higher the announcer's voice will get.

Change Body Size
Go to the Options screen. Hold C-DOWN and Press R to bring up a menu at the bottom of the screen. Hold C-LEFT and press R. If you do this multiple times, you'll get different hights.

Change Head Size
Go to the Options screen. Hold C-DOWN and Press R to bring up a menu at the bottom of the screen. Hold C-DOWN and press R. If you do this multiple times, you'll get different head sizes.

Always Fight
Go to the Options screen and highlight Fighting. Hold L and press the following with the C buttons: Right, Left, Left, Right, Down, Up, Up, Down, Left, Right, Right, Left, Right, Left.