Big head:
Select the "Extras" option at the main menu, then choose the "Cheat Codes" option. The screen shows four boxes with pictures in them. Line up the pictures in the correct order by scrolling through them, then choose "Enter Code" to activate the code: (Hat), (Helmet), (Helmet), (Hat) as a code.

Sunglasses:
Select the "Extras" option at the main menu, then choose the "Cheat Codes" option. The screen shows four boxes with pictures in them. Line up the pictures in the correct order by scrolling through them, then choose "Enter Code" to activate the code: (Glove), (Glove), (Helmet), (Helmet) as a code.

Invincibility:
Select the "Extras" option at the main menu, then choose the "Cheat Codes" option. The screen shows four boxes with pictures in them. Line up the pictures in the correct order by scrolling through them, then choose "Enter Code" to activate the code: (Baseball), (Baseball), (Baseball), (Shirt) as a code.

Big feet:
Select the "Extras" option at the main menu, then choose the "Cheat Codes" option. The screen shows four boxes with pictures in them. Line up the pictures in the correct order by scrolling through them, then choose "Enter Code" to activate the code: (Hat), (Glove), (Glove), (Hat) as a code.

Big hair:
Select the "Extras" option at the main menu, then choose the "Cheat Codes" option. The screen shows four boxes with pictures in them. Line up the pictures in the correct order by scrolling through them, then choose "Enter Code" to activate the code: (Baseball), (Bat), (Bat), (Baseball) as a code.

Paper pants:
Select the "Extras" option at the main menu, then choose the "Cheat Codes" option. The screen shows four boxes with pictures in them. Line up the pictures in the correct order by scrolling through them, then choose "Enter Code" to activate the code: (Bat), (Bat), (Hat), (Hat) as a code.

Underwear:
Select the "Extras" option at the main menu, then choose the "Cheat Codes" option. The screen shows four boxes with pictures in them. Line up the pictures in the correct order by scrolling through them, then choose "Enter Code" to activate the code: (Hat), (Hat), (Shirt), (Shirt) as a code.