The game consists of a 5 * 5 grid of lights; when the game starts, a set of these lights ( stored puzzle patterns ) are switched off, pressing one of the tiles will toggle it and the four lights adjacent to it on and off. ( Diagonal neighbours are not affected ).
The game provides a puzzle: to switch all the lights on, preferable in as few button presses as possible.

Note:- if you want to unlock all levels :

press on level 52 >>> 50 >>> 48

enjoy the game !!!!!!!!!!!!

Screenshots: