圣诞老人骑着雪橇在天上飞，本游戏的最大特色是物理系统很完美，模拟出了很逼真的物理效果，玩家通过上下左右来控制雪橇下落。-Santa Claus riding a sleigh in the sky fly, the Games are the most significant feature of the physical system is perfect, a very realistic simulation of physical effects, the player passed u