Blast Chamber Codes -

Unlimited lives:
Press Square, Left, Square, Right, Circle, Down, Circle, Up at the title screen. Then, choose "Sole Survivor" mode in the "Games" menu. Return to the main menu and start the game.

Bonus level:
Enter JODPEGEA as a password.

Level	Password
Ziggurat	NAEMMAAB
Backstab	MAGDIEAH
Fall N Arch	NINKPDME
Fugitive	MJKKAMKC
Rainbow	JODPIGEH
Lavapalooza	ICJABNA