Hard Boiled Game System: Sony Playstation Cheat Category: Cheat Game Company: Unknown Game Category: Unknown Hint, Cheat, Walkthrough:   Hard Boiled =========== Level select: Hold Up + X + Start at the text credits opening screen and select "Load Game". Fight level 2 Boss: Enable the "Level select" code. Then, hold L1 during the "Loading" screen. Fight level 5 Boss: Enable the "Level select" code. Then, hold R1 during the "Loading" screen.