Enter the following at the Password

Infinite Lives Screen:
*1NV1S4BL3*

Level 2 Passwords:
Passwords to access this level:

N1PBBDG8V
QQPBBYGYV
Q8QBBYQ6V

Level 3 Passwords:

XG#BVMVFW
GP4BVD6RW
439BBP6LW

Level 4 Passwords:

85DCVLQVC
4GKCVDLZC

Level 5 Passwords:

GNWCVBGMD
6PXCBCVBN

Level 6 Passwords:

SP2CBBVBJ
N93CVBG8J

Start At Boss:

At the Game Options Screen, highlight Start Level. Select the level you want and highlight the Start At Boss option. Select yes and press OK.

Unlock All Levels:

*S3L3CTI0N*
Press OK and immediately go back to the Password Screen and enter the following:
*SH0WT1M#*
and press OK.

Gallery Mode:

#g4ll3ry Unlock all levels: Go to password screen and type as a password #s3l3cton# Press ok, then go back to password screen and type as a password #showt1m3#.