Xtreme Sports Cheats (GameBoy Color)

To play all levels, plus view bonus materials, enter the following at the Title Screen:
press Left five times, Up five times, Right five times, Down five times, Select five
times. 
  SOUND MENU: Hold A and move left or right to select a song or effect. Press Select to
play it. 
  Choose SCRAPBOOK to read about the making of Xtreme Sports and see preproduction art.

During the end credits, which are actually a playable level, look for a low building just
before the programmer's credit. Double jump on top of it, and jump up onto on a series of
invisible clouds that lead to the right. At the end is a special message.

Start a new game, and enter your name as "staff" in all lowercase letters. Then leave the
sign-in hut and head left to the snack shop. Upon entering, the screen will switch to the
end sequence. You will see Guppi in her bikini.

Choose New Game and go to the sign-in hut. Enter your name as "xyzzy" in all lowercase
letters. After exiting the hut, Hold A and press SELECT. You can toggle back and forth
between having 400 Medals and No Medals.