Black Muscle Beest is a free classic jigsaw puzzle flash game. In this game you can enjoy 2 modes. Its up to you that you want to play it in free mode or you want to play it in time mode. Time mode is for expert players who have ability to run behind the time. On the other hand free mode is for new players so that can solve the puzzle before watching the time. If you feel you are expert enough you can play hard mode and if you are new to jigsaw puzzles you can play easy mode. There is Medium mode is also available. Play Old Timer Truck Jigsaw Puzzle free.