CONTAINS SPOILERS

After you beat the game, you receive a secret code during the credits. This is the old school Konami code: ⬆+⬆+⬇+⬇+⬅+➡+⬅+➡+🅱+🅱 If you enter this button sequence at the main menu, you unlock Credits, Image Gallery, and Pandora's Box which provides you with these additional settings: 🔹 Stage Selection 🔹 Difficulty Level 🔹 Speed Up 🔹 God Mode 🔹 Disable Rider 🔹 Rapid Fire