# Makecode arcade has secret extensions!
**URL:** https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528
**Category:** Show & Tell
**Tags:** extension
**Created:** [February 1, 2024, 10:25pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528 "2024-02-01T22:25:20Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@ethan](https://forum.makecode.com/u/ethan)
#### Post date: [February 1, 2024, 10:25pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/1 "2024-02-01T22:25:20Z")
[SECRET EXTENSIONS!!](https://arcade.makecode.com/S65769-39397-42702-89189)
I found them by typing every letter of the alphabet in the extension search bar, to avoid confusion as much as possible: i searched for a then selected every secret extension until they were all loaded then i went to b then c etc
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### Author:  [@richard](https://forum.makecode.com/u/richard)
#### Post date: [February 1, 2024, 10:26pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/2 "2024-02-01T22:26:54Z")
_gasp!_
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### Author:  [@robotosaurus](https://forum.makecode.com/u/robotosaurus)
#### Post date: [February 1, 2024, 10:29pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/3 "2024-02-01T22:29:21Z")
I don’t think they are secret But some of them do seem interesting.
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### Author:  [@Luke](https://forum.makecode.com/u/Luke)
#### Post date: [February 3, 2024, 12:46am UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/4 "2024-02-03T00:46:49Z")
How does this extension work?
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### Author:  [@randomuser](https://forum.makecode.com/u/randomuser)
#### Post date: [February 3, 2024, 12:46am UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/5 "2024-02-03T00:46:53Z")
WOAH!! I wonder who made them!?
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### Author:  [@ADM\_F](https://forum.makecode.com/u/ADM_F)
#### Post date: [February 3, 2024, 12:47am UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/6 "2024-02-03T00:47:00Z")
man i wish that mouse extension worked the way i thought it did would have been nice to use the mouse easily
im aware of the other mouse one
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### Author:  [@Fryguy](https://forum.makecode.com/u/Fryguy)
#### Post date: [February 3, 2024, 12:47am UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/7 "2024-02-03T00:47:04Z")
_wow_
How has nobody noticed these yet?
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### Author:  [@ethan](https://forum.makecode.com/u/ethan)
#### Post date: [February 3, 2024, 12:47am UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/8 "2024-02-03T00:47:07Z")
Not even 19 hours yet and 76 views already!
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### Author:  [@ethan](https://forum.makecode.com/u/ethan)
#### Post date: [February 3, 2024, 12:47am UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/9 "2024-02-03T00:47:10Z")
Secret or not they added another one
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### Author:  [@technonux](https://forum.makecode.com/u/technonux)
#### Post date: [February 3, 2024, 12:47am UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/10 "2024-02-03T00:47:14Z")
KEYABORD AND MOUSE EXTENTION?!?!?
this is gonna be useful for mka os!
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### Author:  [@robotosaurus](https://forum.makecode.com/u/robotosaurus)
#### Post date: [February 3, 2024, 12:59am UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/11 "2024-02-03T00:59:58Z")
No, it allow devices to act like mouse’s or keyboards.
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### Author:  [@urassari](https://forum.makecode.com/u/urassari)
#### Post date: [February 5, 2024, 5:37pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/12 "2024-02-05T17:37:13Z")
that extension lets you do stuff like writing “hello” into your computer by pressing A on your meowbit, not stuff like getting input from keyboard into the meowbit.
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### Author:  [@technonux](https://forum.makecode.com/u/technonux)
#### Post date: [February 5, 2024, 5:41pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/13 "2024-02-05T17:41:15Z")
i know, i have an on screen keyboard for it and i can program it so that you can use it as a keyboard for devices if you dont have one
i can also use the gyroscrope as a mouse
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### Author:  [@ethan](https://forum.makecode.com/u/ethan)
#### Post date: [February 5, 2024, 5:41pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/14 "2024-02-05T17:41:23Z")
I don’t know how most of them work so don’t ask me
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### Author:  [@ethan](https://forum.makecode.com/u/ethan)
#### Post date: [February 5, 2024, 5:41pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/15 "2024-02-05T17:41:24Z")
What?
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### Author:  [@ethan](https://forum.makecode.com/u/ethan)
#### Post date: [February 5, 2024, 5:41pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/16 "2024-02-05T17:41:25Z")
It wont work in the emulator
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### Author:  [@richard](https://forum.makecode.com/u/richard)
#### Post date: [February 5, 2024, 5:53pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/17 "2024-02-05T17:53:45Z")
Hey folks! These are all hidden for a reason, you probably don’t want to use them in any of your games. Some of them are very old extensions that we deprecated, some are used internally by us, some are just confusing…
For example, keyboard and mouse do not in fact let you use a keyboard and mouse in your game! They are for making hardware devices pretend to be keyboards and mice when connected to a computer via USB. Nobody understood this so we hid them
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### Author:  [@technonux](https://forum.makecode.com/u/technonux)
#### Post date: [February 5, 2024, 6:44pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/18 "2024-02-05T18:44:55Z")
maybe try to rename the keyboard/mouse ones to “keyboard output”/“mouse output”
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### Author:  [@technonux](https://forum.makecode.com/u/technonux)
#### Post date: [February 5, 2024, 6:44pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/19 "2024-02-05T18:44:58Z")
i know i used it on [https://maker.makecode.com/](https://maker.makecode.com/)
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### Author:  [@ethan](https://forum.makecode.com/u/ethan)
#### Post date: [February 6, 2024, 7:33pm UTC](https://forum.makecode.com/t/makecode-arcade-has-secret-extensions/26528/20 "2024-02-06T19:33:16Z")
And yet when i went to the help for the extensions i understood then
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