Full energy
Do not press any buttons during a game for over two seconds, then press Right(2), Up(2), Left, Down, Left, Down, X, Circle.
All items
Do not press any buttons during a game for over two seconds, then press Right, Up, Down, Left, R2, L2, L1.
Open exit doors
Do not press any buttons during a game for over two seconds, then press Right, Up, Right, Up, Select(2), Start(2).