Godzilla: Save the Earth Cheats - PlayStation 2

Cheat Menu
At the main menu, press and hold [L2], [Circle], [R2] in that order then let go of [Circle], [R2], [L2] in that order. Then enter the following codes:

246518 - Master code
975013 - Unlock Challenges
532459 - Get 100,000 Points
667596 - Get 150,000 Points
750330 - Get 200,000 Points
294206 - Unlock Gallery 1
409014 - Unlock Gallery 2
525955 - All monsters
659996 - All cities
812304 - Buildings indestructible
122574 - Energy does not regenerate
536117 - Health comes back
259565 - Player 1 does 4x damage
819342 - Player 1 has infinite Energy
531470 - Player 1 is invisible
338592 - Player 1 is invulnerable
927281 - Player 2 does 4x damage
324511 - Player 2 has infinite energy
118699 - Player 2 is invisible
259333 - Player 2 is invulnerable
500494 - Player 3 does 4x damage
651417 - Player 3 has infinite energy
507215 - Player 3 is invisible
953598 - Player 3 is invulnerable
988551 - Player 4 deals 4x damage
456719 - Player 4 has infinite energy
198690 - Player 4 is invisible
485542 - Player 4 is invulnerable

Unlock Characters
To unlock Space Godzilla, King Gidorah and Jet Jagaur beat the game two times with Megalon and 90's or 2000 Godzilla.

Unlock Ending Movie
Beat the game on the hard difficulty setting.