Levels
1A-Beaches
of England
1B-Forest
1C-Woking
2A-Port of
London
2B-Giant
Sewers
2C-Streets
of London
3A-Desert
3B-Jungles
3C-Huge
Warehouse and Weapon Manufacture
4A-Underwater
4B-Mountains
4C-World
Defense Secret Base
5A-Antarctic
5B-Alien
Floating Fortress
5C-Alien
Colony on Earth