at the sunrise stage when you choose to go with your mom or stay.. there's a greek flag and an american flag outside side by side. now im pretty sure this has to do with Oedipus Rex.
this game is a masterpiece. nothing better than the relentless fire from the enemy forces and the nerve-racking experience of defending your puny bunker against them. the drums of war add to the intensity. a truly must-try mobile gaming experience.