Cheat mode:
Hold R + L + Y + Down for three seconds while playing the game, then enter one of the following codes. A message will appear next to the mini-map to confirm correct code entry. Repeat the code to disable its effect.

God mode:
Press R(3), L(3), R, L, Y, R.

Auto-win:
Press R(2), L(3), R(2), Y(3).

Level select:
Press Y(3), L, R, L(2), R, L, R(2), L, R, L(2), R, L, R, L(2), R, L(2), R, L, R(2), Y(3) to unlock the "Bling" profile with all levels unlocked.

Fog of war:
Press R, L, R(2), L(2), Y(2), L, R.

Decrease speed to 50%:
Press L(5), Y(4), R.

Increase speed to 200%:
Press R(5), L, Y, R(3).

Additional 100 Gold:
Press L, R(4), L, Y, L(3).

Additional 100 souls:
Press R, L(4), R, Y, R(3).

1000 Gold and Souls:
Press R(2), L, R(2), Y(3), L(2).

Capturing a structure:
Simply kill every enemy around it, then place a unit near the structure for a period of time and a green ping will become visible on the map to signify its capture.

Controlling units:
10 regular goblin units including support units can be controlled from each
clan at a time, and you may only control 3 clans at a time. Also you can have
one titan and three turrets at a time.