Happy forever, Evil forever
Go to the start of the game selection screen. now, go to the options menu, and click the following into your control pad: Z, Down, A, B, A, R (for happy forever) Z, Up, A, B, A, L (for evil forever). This code will allow you to either, have as -many happy counters as you want or as-many evil counters ad you want. ( You get bigger, stronger, etc. )

Get Extra Levels
Finishing all 16 monuments will get you a intermission and a new level. Fulfil the villager's wishes and after the monument the credits will start. New levels will now appear on the main menu. Build the good and bad variations of the fifteen monuments in the museum. Then, destroy one of the monuments. The villagers will build a mystery monument, followed by an intermission sequence and bonus levels.

Defending villages
Use water to protect villages against fire. Create mountains around them to keep tornadoes away.

Jashin waring
Do not turn into Jashin too frequently, as it may cost you the trust of the villagers.

Turn Giant quickly
Turn into Jashin and go on a rampage in a good size village. Get the skulls to increase to giant size.