本游戏实现了玩家控制飞船对太空中的入侵者进行阻难，本游戏设有级别，能量包，生命包。可显示级别、积分生命值等。能量包是每隔3级出现一个，生命值每隔5级出现一个。-The game, players control the spacecraft space intruder resistance difficult, the game has a level of energy package, package of life. Can display level, the integral val