Godzilla Unleashed Cheats
Enter the following at the title screen.
Code: Press Up + A
Press + and - together, then enter the following at the home page.
Play "Invasion" as a Earth Defender at San Francisco and defeat Ghidorah. Play "M.K.G" and defeat Mecha Ghidorah and buy him for 50,000 points.
Play as a Mutant and obtain four Power Surges and beat "Tyrant" at the end of the game. SpaceGodzilla will be added to the shop and will cost 100,000.
Be a ED and play "Enter General Gyozen" at London. Destroy three teal crystals. Return near the end and defeat Megaguirus. Buy her for 20,000 pts.
Play a mech from GDF and play "Big Trouble" at Seattle. Destroy three cone crystals. Defeat Obsidius later and buy him for 20,000 pts.
Unlock every monster for purchase or play a set number hours. Then buy him for 100,000 points.
Play as an Alien and destory the crystals on the Mothership in "On the Mothership". Return to the level and defeat Varan and buy him for 30,000 pts.
Free Baragon from the crystals in "A Friend in Need" at Monster Island as a Alien. Defeat him in the "Baragon" stage and buy him for 15,000 points.
Be a Earth Defender and play "Rumble in the Surf" at Tokyo. Destroy the building with vines and defeat Biollante later on and buy her for 30,000 pts.
Buy a monster from each faction or beat the game with a monster from each faction. Then buy him for 20,000 points.
Use a mech from GDF and play "Soloist" at Sydney. Destroy three circular ice structures. Return later and defeat the dinosaur. Buy him for 25,000 pts.
Play "Terran Mind-Control" at New York as an Alien. Destroy large crystal in crater and nine days later defeat Krystalak and buy him for 20,000 pts.
Play through single player as Aliens and when you get to the level "Invasion" instead of defeating the enemies destroy the mothership. This will unlock the mothership level for purchase in the store.