Modifications:

1. You can see number of you lives (Modify the in-game GUI in some significant way)

2. On 2nd 3rd levels you will fight with not ends numbers of enemies (until you do not win).  I placed their spawns there. (Add new obstacles and challenges). 

3. On 2nd 3rd levels you will faced with falling asteroids, be aware. You can destroy them. (Add new enemies with their own behavior)

More information
StatusReleased
PlatformsHTML5, Windows
AuthorDankuziur
GenreShooter
Made withUnity

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Windows.zip 34 MB