Name: Tyrants: Fight Through Time
Platform: Sega Genesis / Mega Drive
Region: USA
Media: Cartridge
Controller: Gamepad
Genre: Simulation, Strategy
Gametype: Licensed
Release Year: 1992
Developer: Sensible Software
Publisher: Virgin Interactive
Players: 1
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Mega-Lo-Mania is a God Simulation like no other. It's madcap mayhem a-go-go as men from all walks of historical life fight each other to control a planet. With crazy speech provided by professional actors, Mega-Lo-Mania is a feast of far-out fun for anyone!

Hints:

- Hidden Game of Asteroids - 
Enter the word JOOLS into the password screen to get a hidden game that plays kind of like Asteroids.

- Epoch Passcodes - 
Select OPTIONS and select LOAD to get to the password entry screen. The password must be 11 letters long.
SIZCSVLOPNLStart Epoch 1 with 200 men
SMLCUQKDKHHStart Epoch 2 with 999 men
WQICAUWQIBNStart Epoch 3 with 999 men
UVICOPEQIBJStart Epoch 4 with 999 men
SAJCSPEFKHVStart Epoch 5 with 999 men
QFJCKRKFKHRStart Epoch 6 with 999 men
OKJCAQEGKHXStart Epoch 7 with 999 men
MPJCDWEGKHKStart Epoch 8 with 999 men
KUJCTYQVLNWStart Epoch 9 with 999 men
IZJCJKXGKHDStart Epoch Megalomania with 999 men

http://www.gamefaqs.com/console/genesis/home/586569.html