Godzilla Unleashed Cheats

Cheat List
Press [X] + [U]p to open the cheat screen and enter these codes for the desired effect:

031406 - 90000 Store Points
Enter 0829(XX) - Set the date Note: XX is the day you want to go to
204935 - Unlocks all store items
411411 - Show Monster Text
585858 - Hide HUD
787321 - Toggle version #
858585 - Show HUD

Monsters
Certain monsters are obtained by completing a certain task.

Baragon: 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.
Biollante: 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.
Krystalak: 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.
Mecha-King Ghidorah: 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.
Megagurius: 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.
Obsidius: 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.
SpaceGodzilla: 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.
Titanosaurus: 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.
Varan: 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.