To enable cheats, just type the following code in the game : alyenya
Then hit the following keys to enable cheats (note these keys are for a QWERTY keyboard.. "alt+m" becomes "alt+," on an AZERTY keybord for example) :
alt+e = health of all enemy units is 1 now
alt+y = flags of all events cleared
alt+u = first tasks in all academies finished
alt+i = toggle visibility of all units
alt+j = enable/disable fake times
alt+f = all buttons and mouse enabled
alt+m = win mission
