Maji de Manabu: LEC de Ukaru: DS Kikenbutsu Toriatsukaisha Otsushu 4 Rui

A simple puzzle homebrew game for the Nintendo DS, grab your stylus and turn out the lights, its that simple...or is it?
Clicking on a Light, will toggle its status, but will also affect the light above, below to the left and right of the one you click. It's harder first think!