Simple....

I dont see how this can be fun or challenging for anyone older than 5 ...its so easy and simple ...not to mention there are a few hundred games that have the exact same mechanics already on the AppStore....
Yeah even copycat apps need some original ideas ....
So basically unless your a child or a simpleton dont waste your time or space ....

BethArific about Tesla Tubes: Solve our Logic Games & Brain Puzzles, v1.2.0