After starting a new game, wait for the loading screen that has the dancing pigs. Then, hold R1 and press Select, Right, Left, Down, X, Circle, Start. Finally, when loading has completed, press Start.
Change Hair color
At the options screen, hold R1, L1, Select, Square and press Left, Down, Right, Up, Up, Right, Down, Left.
If you save the game and load it again, your health meter will be full again.
01/23/00 Brian C.