Enter the following characters at the password screen to unlock the corresponding level:

Level 1-2: Sabrina, Sabrina, Salem, Jem
Level 1-3: Sabrina, Salem, Salem, Red Head Boy
Level 1-4: Sabrina, Harvey, Salem, Harvey
Level 2-1: Salem, Cloey, Sabrina, Salem
Level 2-2: Harvey, Salem, Red Head Boy, Red Head Boy
Level 2-3: Harvey, Harvey, Red Head Boy, Sabrina
Level 2-4: Harvey, Cloey, Red Head Boy, Salem
Level 3-1: Cloey, Jem, Jem, Harvey
Level 3-2: Jem, Harvey, Cloey, Sabrina
Level 3-3: Jem, Cloey, Cloey, Salem
Level 3-4: Jem, Jem, Cloey, Salem
Level 4-1: Red Head Boy, Red Head Boy, Harvey, Cloey
Level 4-2: Sabrina, Cloey, Jem, Salem
Level 4-3: Sabrina, Jem, Jem, Harvey
Level 4-4: Sabrina, Red Head Boy, Jem, Cloey