When the day has comes to night, every light of the building in the city is turned on. But, when work hour is done, not everyone done working. There are some people still working until work hour end. The problem is, not every room where the worker leave is turned off. We need to turn off every light of empty rooms so the power not wasted vainly.

[HOW TO PLAY]
★ Tap the switch in room where the no worker inside.
★ Avoid tapping the switch in room where there worker inside.
★ Avoid tapping the switch in room where the light has turned off.

[FEATURE]
★ 3 Mode available. (Lazy, Serious and Insane)
★ 2 Leaderboard, Score and Power Saving Score.
★ Many Achievement.

Enjoy the game, Celebrate Earth Day and let's SAVE THE POWER!