游戏截图：
https://blog.csdn.net/niehanmin/article/details/80332580
unity迷你太空射击游戏源码，重现儿时的掌机时代的感觉。
You can choose what game you want to play: killing enemies in Space War, or rescuing astronauts in Space Rescue.
This is a complete game with fully commented sc ripts in C#.
In this game you can see how to:
* Use the new UI from version 4.6
* Work with global data through Persistent Singletons
* Use ob ject pooling to prevent performance loss.
and the basics of 2D games:
* Sprite movements
* Collisions
* Play sounds
