If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
This is the training period in the army, assume that you are in the army as a trainee. You have to blast the entire buildings by dropping bombs over them. Be careful while the helicopter decreases its flying altitude after every round. Blast the tall buildings to avoid colliding with them or else play again. Earn score for blasting the buildings. Accomplish the given task and move to next day.
Use Spacebar to drop bombs.