At the password screen, enter one of the following codes.

Effect	Password
Level 10 - Beginner mode	OATBK
Level 10 - Master mode	PLJKF
Level 13 - Beginner mode	BKMLD
Level 13 - Master mode	FLMKE
Level 16 - Beginner mode	LKPKO
Level 16 - Master mode	OBZAM
Level 3 - Beginner mode	SANAT
Level 4 - Master mode	WBNAU
Level 7 - Beginner mode	DKGKL
Level 7 - Master mode	KBWAT