A shape centered game, that is what Circles and Squares is all about. This is basically a puzzle game where you will have to get that round object to the goal by rotating the frame they're in and sometimes changing their size is needed. Anyways, if at some point you got stuck in some levels, maybe this Circles and Squares Walkthrough video can help.
Here's for the levels 1 to 25.
Levels 26 to 45.
and levels 46 to 50.
This game has a lot of levels to keep you busy. if you have anything to add to this Circles and Squares Walkthrough, leave us a comment.