游戏说明：

游戏控制

Arrow keys - Move.
Z - Shoot.

Click the drop-down box at the top-left corner of the main menu to change the language. Complete the mission objectives to complete each level. Pick up DNA cards to play as different characters.
In the Mission Select Menu, you can choose to play new missions as you complete the preceding missions and as they are released (one day at a time). You can also choose to replay previous missions to pick up more DNA cards and improve your score.