sentences:  The player controls a paddle at the bottom of the playfield, which can move left and right to bounce the ball back upward.Unlike in most other "Breakout"-style games, missing the ball does not cost a life or end the game, but rather adds more lines of gems to the top of the playfield.Gem lines will advance on their own after a certain amount of time, as well as when the playfield is cleared entirely or drops below a certain number of gems.