This part is pretty much just debugging, but still, it could make my eyes bleed. We brought the game to some friends to let them play this game, and
turned out to be they really love it. Just like flappy bird, it's so hard so you keep wanting to play more. A few feedbacks were collected.
According to the feedbacks we collected from our instructor and friends, me and my team mate fixed some minor bugs which could cause fail of the game at
level 1, and we slowed down the speed a bit, it's just too fase. Also, sound effects were added to it to make it more interesting.