Have you played the free online game 'Kick The Buddy'? If so, you'll find playing this one interesting too but less bloodthirsty. You will not kick anyone in this free online game - there is only one puzzle, which you have to collect piece by piece. What's simple about it: all the pieces rotate as they should, so there's no rotation and connection confusion; as the pieces are put together, they stick together and move in bulk. The tricky thing is that there is no background image that you can look at while working, so you just put the pieces together however you see fit. That's not like real-life puzzles, where a box with an assembled picture is present. The verdict? Extremely playable!