# Vertical Shooter Game Question

**URL:** <https://forum.kirupa.com/t/vertical-shooter-game-question/215924>\
**Category:** programming\
**Created:** [February 12, 2007, 6:10am UTC](https://forum.kirupa.com/t/vertical-shooter-game-question/215924 "2007-02-12T06:10:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![nixthinx](https://avatars.discourse-cdn.com/v4/letter/n/5f9b8f/32.png) [@nixthinx](https://forum.kirupa.com/u/nixthinx)\
**Post date:** [February 12, 2007, 6:10am UTC](https://forum.kirupa.com/t/vertical-shooter-game-question/215924/1 "2007-02-12T06:10:10Z")

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Hello - This might be simple for most of you but I am trying to understand the posted game:  
[http://www.kirupa.com/developer/actionscript/vertical\_shooter4.htm](http://www.kirupa.com/developer/actionscript/vertical_shooter4.htm)

I want to know what makes the dragons disappear? There is no remove movieclip for the dragons.

Can someone please help me understand. Thanks.

Sara