Instructions
Watch the atoms bounce around for a moment. You can take a moment to figure out a pattern with the atoms, but if you take too long, time will run out.
Left-click near the center of the bottom of the room. Make it high enough where you will actually block off some of the room, but not so high that an atom will strike the incomplete line and take one of your lives.
Left-click the center of the room on the very same line where you clicked before. Do this almost immediately after making the first line. If done correctly, only half the line will spawn toward the top of the room.
Repeat steps 2 and 3, gradually closing off various parts of the room. If this is done properly, you will trap some atoms away from the others, gradually closing off 75 percent of the room.