A game machine includes a bed, a marble launching device fitted to a front end of the bed, a game plate supported on a rear section of the bed, and a bottom plate positioned under the bed; the game plate slopes up rearwards, and has several through holes thereon for allowing marbles to pass through; the marble launching device is used for launching marbles onto the game plate through a front section of the bed; the bottom plate has a marble receiving area, which projects out beyond a front end of the bed; the bottom plate has several lengthways extending trenches thereon therefore marbles will roll to the marble receiving area along the trenches when they fall through the through holes of the game plate.