Objective : Turn all of the lights off.
In game instructions (Very Detailed).
Simple instructions: Click the yellow squares until they all turn gray.
High score tables for the set levels. (All of these levels are possible to complete)
I'm not sure if EVERY level in random modes is possible to complete. But you do have a skip level button for that.
Game Controls
In game instructions (Very Detailed).
Simple instructions: Click the yellow squares until they all turn gray.