iShifting from Calibre Games is a fun puzzle / object management game. In it you play Charlie, assembly line worker drone. Charlie's job involves directing the flow of parts on the conveyor belt to their appropriate location so that items can be assembled. As Charlie gets better at his job the speed with which items must be assembled, the speed of the assembly line, and the number of items increases. As long as Charlie can keep up with the pace and perform all his tasks in the allotted time he'll continue to progress.