Use the arrow keys to move. The Space key is used to perform actions. The Z key to drop a bomb and the X key to detonate it when you are away from it. The R key restarts the mission.
Move to the final square to move on to the next event.
In order to remain stealthy in your movements, you must lean against the walls and walk along them. You can move the crates by getting behind while moving forward.
Can you finish the game without being spotted?