This hack enables missing levels and adds passwords also fixes some glitches with the ending.
ROM MD5 3657479C166707152169777570DD4E32
ROM SHA-1 8B681FC7169096EC2FAA12E21E20811DAAFD45A6
ROM CRC32 6ED31CCD
ROM SHA-256 A114DD07041E438DB34A3569A0E0B987CFAC16AA505A851AC14D9C43349BAA48