# Platformer extension demo

**URL:** https://forum.makecode.com/t/platformer-extension-demo/714
**Category:** Arcade
**Tags:** extension
**Created:** [October 29, 2019, 5:47pm UTC](https://forum.makecode.com/t/platformer-extension-demo/714 "2019-10-29T17:47:17Z")
**Posts on this page:** 1
**Showing post:** 9

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### Author: ![cosmoscowboy](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/cosmoscowboy/32/1718_2.png) [@cosmoscowboy](https://forum.makecode.com/u/cosmoscowboy)
#### Post date: [January 2, 2021, 3:52pm UTC](https://forum.makecode.com/t/platformer-extension-demo/714/9 "2021-01-02T15:52:29Z")

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@richard  
I found the ‘slope demo’ you were referring to in [A tournament - Arcade - Microsoft MakeCode](https://forum.makecode.com/t/a-tournament/4978/41)

Unfortunately after importing the GitHub url of ( [GitHub - riknoll/pxt-platformer: A Microsoft MakeCode Arcade extension for platformers](https://github.com/riknoll/pxt-platformer)), I receive the following errors:

 ![image](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/2X/a/acb0c02e815cf35ad41ba7656e0b1eb11b0da8e5.png)

 ![image](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/2X/8/8609d298a0bd300fbc2eb6f196ab18e3fa4510d0.png)

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