上下键

• Keyboard arrow keys control direction , and avoid ice smooth clearance
  键盘上下键控制方向，躲避冰块顺利过关。
• Introduction : keyboard arrow keys to select a menu , the blank button to confirm
  键盘上下键选择菜单，空格键确认。
• Keyboard arrow keys control
  键盘上下键控制。
• Up down arrow : select period
  上下键：选择运
• Press both keys at the same time to exit the state of setting after setting
  设置完成后再同时按上下键退出设置状态。
• The arrow keys to control small new movement , the space bar to spittle attack
  上下键控制小新移动，空格键为唾沫攻击。
• Keyboard arrow keys to control movement , w key jump , the space bar and fauna
  键盘上下键控制移动， w键跳跃，空格键大跳。
• Operations guide blank shooting , moving around key , the arrow keys for ammunition
  操作指南空格射击，左右键移动，上下键换弹药。
• Operations guide : key control , turning around key , the arrow keys back ahead
  操作指南：方向键控制，左右键转弯，上下键前进后退。
• Operations guide : key to the direction of the arrow keys control the space bar shooting
  操作指南：方向键的上下键控制，空格键放炮