# Shaking, trembling behavior with touching arcade objects

**URL:** <https://phaser.discourse.group/t/shaking-trembling-behavior-with-touching-arcade-objects/4402>\
**Category:** Phaser 3\
**Created:** [November 28, 2019, 7:48pm UTC](https://phaser.discourse.group/t/shaking-trembling-behavior-with-touching-arcade-objects/4402 "2019-11-28T19:48:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![fselcukcan](https://avatars.discourse-cdn.com/v4/letter/f/b5a626/32.png) [@fselcukcan](https://phaser.discourse.group/u/fselcukcan)\
**Post date:** [November 28, 2019, 7:48pm UTC](https://phaser.discourse.group/t/shaking-trembling-behavior-with-touching-arcade-objects/4402/1 "2019-11-28T19:48:56Z")

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Continuing the discussion from [Selecting correct physics (engine)](https://phaser.discourse.group/t/selecting-correct-physics-engine/4387/5):

When the balls reach the bottom and interact with the other balls resting there they start to shake and move weirdly. E.g.: They may change position with each other instantly etc. Here is the fiddle: [https://jsfiddle.net/fselcukcan/ovy9c4bm/7/](https://jsfiddle.net/fselcukcan/ovy9c4bm/7/).

What can be the reason here? Is it normal?

Note: Click to create a ball. Click and hold to scale it up. Release the mouse to release the ball or it will release itself after a scale factor.  
Arcade physics used here.