Remember, by definition they stop the action, so you'd better have a very good reason for using one (e.g.,
essential character background info that is so crucial you need to dramatize it).
Unlike Braid however, «trapping» the
characters in time is
essential to solving puzzles: ejecting a tape from a VCR to build a bridge with; rapidly going back and forth in time to saw a board in half; manipulating a game playing on a CRT in the
background, all these puzzles are wholly unique and make you feel incredibly smart for solving them.