Cool World Cheats
Enter GXUVTKVK as a password.
Enter SXSTOTVG as a password.
Enter SXVVKTVG as a password.
Press L, Left, R, Right, Up, X, Down, B on the title screen. Press A to change images.
When the Title Screen comes up, press these buttons in this order to see the ending and end credits of the game: L button, L button, R button, R button, UP, X, DOWN and B.