# Memory management question

**URL:** https://forum.kirupa.com/t/memory-management-question/234482
**Category:** flash
**Created:** [August 2, 2007, 4:14pm UTC](https://forum.kirupa.com/t/memory-management-question/234482 "2007-08-02T16:14:02Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![woad](https://avatars.discourse-cdn.com/v4/letter/w/34f0e0/32.png) [@woad](https://forum.kirupa.com/u/woad)
#### Post date: [August 2, 2007, 4:14pm UTC](https://forum.kirupa.com/t/memory-management-question/234482/1 "2007-08-02T16:14:02Z")

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I’m making an isometric game and I need to know which takes less memory for scrolling, making everything invisible that you can’t see?

Like if(!this.base.hitTest(worldHitter))this.\_visible = false;

Or would it be better to remove the movieclips unseen and then reattach them when i should see them?