# Help **URL:** https://forum.makecode.com/c/share-your-arcade-projects-here/help/14.md?page=49 [Latest](https://forum.makecode.com/latest.md) · [Categories](https://forum.makecode.com/categories.md) · [Tags](https://forum.makecode.com/tags.md) **Page:** 50 --- ## [Cannot read properties of undefined (reading 'length')](https://forum.makecode.com/t/cannot-read-properties-of-undefined-reading-length/33981)
**Author:** [@Unique](https://forum.makecode.com/u/Unique)\ **Replies:** 1\ **Last updated:** [February 19, 2025, 6:44pm UTC](https://forum.makecode.com/t/cannot-read-properties-of-undefined-reading-length/33981 "2025-02-19T18:44:11Z")
This error is being given whenever I try to convert TS to blocks. The error cites the first line of main.ts. I’m trying to figure out the error’s reasoning but failed. Any help is greatly appreciated. --- ## [Essential Assets](https://forum.makecode.com/t/essential-assets/33764)
**Author:** [@CodeOnTheCob](https://forum.makecode.com/u/CodeOnTheCob)\ **Replies:** 6\ **Last updated:** [February 19, 2025, 6:39pm UTC](https://forum.makecode.com/t/essential-assets/33764 "2025-02-19T18:39:58Z")
It some assets for games --- ## [Heya! // I need a little help // Space Game](https://forum.makecode.com/t/heya-i-need-a-little-help-space-game/33018)
**Author:** [@naily](https://forum.makecode.com/u/naily)\ **Replies:** 8\ **Last updated:** [February 19, 2025, 6:36pm UTC](https://forum.makecode.com/t/heya-i-need-a-little-help-space-game/33018 "2025-02-19T18:36:33Z")
Hey there! It’s certainly been a while, but I’m getting somewhat back into the swing of things relating to makecode again! It’s been so long, but this site hasn’t changed one bit. You guys may know me as @E-EnerG-Gamec… --- ## [3DS MakeCode Arcade Port](https://forum.makecode.com/t/3ds-makecode-arcade-port/33758)
**Author:** [@Wally](https://forum.makecode.com/u/Wally)\ **Replies:** 5\ **Last updated:** [February 18, 2025, 11:58pm UTC](https://forum.makecode.com/t/3ds-makecode-arcade-port/33758 "2025-02-18T23:58:57Z")
I have a homebrewed 3DS: is there a way to play MCA on it? Like, a homebrew emulator app --- ## [Why aren't my projects appearing when I sign into my account from another device?](https://forum.makecode.com/t/why-arent-my-projects-appearing-when-i-sign-into-my-account-from-another-device/33869)
**Author:** [@ItzWolfeel](https://forum.makecode.com/u/ItzWolfeel)\ **Replies:** 3\ **Last updated:** [February 18, 2025, 11:44pm UTC](https://forum.makecode.com/t/why-arent-my-projects-appearing-when-i-sign-into-my-account-from-another-device/33869 "2025-02-18T23:44:05Z")
For whatever reason, whenever I sign into my makecode arcade acount from a device other than the device I usually use, all of my projects don’t appear. Any idea how to fix this? --- ## [Line of sight in a top-down perspective?](https://forum.makecode.com/t/line-of-sight-in-a-top-down-perspective/33901)
**Author:** [@Bilangus](https://forum.makecode.com/u/Bilangus)\ **Replies:** 5\ **Last updated:** [February 18, 2025, 1:02pm UTC](https://forum.makecode.com/t/line-of-sight-in-a-top-down-perspective/33901 "2025-02-18T13:02:01Z")
Is it possible to implement and detect line of sight in a top-down game? --- ## [Making code run whenever a sprite is made](https://forum.makecode.com/t/making-code-run-whenever-a-sprite-is-made/33909)
**Author:** [@Lilvince](https://forum.makecode.com/u/Lilvince)\ **Replies:** 5\ **Last updated:** [February 18, 2025, 12:53pm UTC](https://forum.makecode.com/t/making-code-run-whenever-a-sprite-is-made/33909 "2025-02-18T12:53:56Z")
I know this seems kind of stupid but the title isn’t all that it seems, I want code to run whenever a SPECIFIC sprite is made, not just a sprite TYPE for example: on created sprite name do something How would I do this? … --- ## [Larger screen for multiplayer game](https://forum.makecode.com/t/larger-screen-for-multiplayer-game/33828)
**Author:** [@chembot](https://forum.makecode.com/u/chembot)\ **Replies:** 4\ **Last updated:** [February 16, 2025, 7:16pm UTC](https://forum.makecode.com/t/larger-screen-for-multiplayer-game/33828 "2025-02-16T19:16:16Z")
I used these lines to modify the screen size: namespace userconfig { export const ARCADE\_SCREEN\_WIDTH = 760 export const ARCADE\_SCREEN\_HEIGHT = 540 } It works in singleplayer games, and for the host, but when s… --- ## [Moving sprite aggro](https://forum.makecode.com/t/moving-sprite-aggro/28343)
**Author:** [@Lilvince](https://forum.makecode.com/u/Lilvince)\ **Replies:** 7\ **Last updated:** [February 14, 2025, 6:47pm UTC](https://forum.makecode.com/t/moving-sprite-aggro/28343 "2025-02-14T18:47:04Z")
how would I make a moving enemy aggro the player if it sees them? (the player being in front of the enemy) and I would also like it so that the enemy loses aggro when sight is cut off, EX: wall, door, ect --- ## [Projectile Help Needed!](https://forum.makecode.com/t/projectile-help-needed/33832)
**Author:** [@Terminator](https://forum.makecode.com/u/Terminator)\ **Replies:** 4\ **Last updated:** [February 14, 2025, 5:56pm UTC](https://forum.makecode.com/t/projectile-help-needed/33832 "2025-02-14T17:56:12Z")
Im not sure how to make it such that the projectiles shoot towards the player, so far i’ve been using the “follow sprite” function. Help will be appreciated --- ## [Help debugging](https://forum.makecode.com/t/help-debugging/33699)
**Author:** [@top\_hat\_lord](https://forum.makecode.com/u/top_hat_lord)\ **Replies:** 10\ **Last updated:** [February 14, 2025, 5:52pm UTC](https://forum.makecode.com/t/help-debugging/33699 "2025-02-14T17:52:23Z")
hey so I was working on this game but the console won’t open after I tried adding a few things. I have tried debugging myself, but I think I need a new POV, could you guys help? --- ## [Ost help needed](https://forum.makecode.com/t/ost-help-needed/33826)
**Author:** [@nugitfan](https://forum.makecode.com/u/nugitfan)\ **Replies:** 1\ **Last updated:** [February 14, 2025, 2:46am UTC](https://forum.makecode.com/t/ost-help-needed/33826 "2025-02-14T02:46:37Z")
I am 2 of 3 steps away from adding my own external ost to my game Elbow Grease. I just need a midi to rtttl converter please help. --- ## [KIRb e (aka the game im making and need help with) by Mcodes](https://forum.makecode.com/t/kirb-e-aka-the-game-im-making-and-need-help-with-by-mcodes/33820)
**Author:** [@mcodez](https://forum.makecode.com/u/mcodez)\ **Replies:** 2\ **Last updated:** [February 13, 2025, 7:15pm UTC](https://forum.makecode.com/t/kirb-e-aka-the-game-im-making-and-need-help-with-by-mcodes/33820 "2025-02-13T19:15:05Z")
Howdy its been a while since i made a game on here so i just wanted to share my demo and mabye the full game later and i need a lot of help so here it is and ill update on it later also first things first i have a wadd… --- ## [I can't figure out how to post my game](https://forum.makecode.com/t/i-cant-figure-out-how-to-post-my-game/16866)
**Author:** [@\_jupiter](https://forum.makecode.com/u/_jupiter)\ **Replies:** 4\ **Last updated:** [February 15, 2023, 4:37pm UTC](https://forum.makecode.com/t/i-cant-figure-out-how-to-post-my-game/16866 "2023-02-15T16:37:20Z")
Does anybody know how to post your game on forum? --- ## [Help with https://github.com/riknoll/overworld](https://forum.makecode.com/t/help-with-https-github-com-riknoll-overworld/33784)
**Author:** [@CodeOnTheCob](https://forum.makecode.com/u/CodeOnTheCob)\ **Replies:** 5\ **Last updated:** [February 13, 2025, 5:02am UTC](https://forum.makecode.com/t/help-with-https-github-com-riknoll-overworld/33784 "2025-02-13T05:02:16Z")
how do you use it @RichardPleaseHelpMe --- ## [Can You Help? URGENT!](https://forum.makecode.com/t/can-you-help-urgent/33804)
**Author:** [@Rombus](https://forum.makecode.com/u/Rombus)\ **Replies:** 2\ **Last updated:** [February 13, 2025, 4:53am UTC](https://forum.makecode.com/t/can-you-help-urgent/33804 "2025-02-13T04:53:07Z")
Can you help me with my game? I’m making a horror game, and I want to make it so that when a monster spawns, it is stationary. If the player looks at it directly, there’s a 50% chance that it’ll disappear or a 50% chance… --- ## [Bobbing in Water](https://forum.makecode.com/t/bobbing-in-water/33760)
**Author:** [@CollapsedAxolotl](https://forum.makecode.com/u/CollapsedAxolotl)\ **Replies:** 4\ **Last updated:** [February 13, 2025, 4:48am UTC](https://forum.makecode.com/t/bobbing-in-water/33760 "2025-02-13T04:48:06Z")
I’m trying to make a platformer, and I’m trying to make a water tile. It will have special properties, but right now, I need a solution for making the player bob up and down when in water. Can anyone help me w/ this? --- ## [Trial function (Need help making it into an extension)](https://forum.makecode.com/t/trial-function-need-help-making-it-into-an-extension/33761)
**Author:** [@Gl125371](https://forum.makecode.com/u/Gl125371)\ **Replies:** 13\ **Last updated:** [February 12, 2025, 6:58pm UTC](https://forum.makecode.com/t/trial-function-need-help-making-it-into-an-extension/33761 "2025-02-12T18:58:21Z")
So… I looked at @LaserFoxPro’s Trail thing and I made it into a function: Trial Example However, can someone make it into an extension? Currently, animating the trial is not supported, but I am working to implement that… --- ## [What would be the best way to create a Map?](https://forum.makecode.com/t/what-would-be-the-best-way-to-create-a-map/33782)
**Author:** [@ADM\_F](https://forum.makecode.com/u/ADM_F)\ **Replies:** 4\ **Last updated:** [February 12, 2025, 6:16pm UTC](https://forum.makecode.com/t/what-would-be-the-best-way-to-create-a-map/33782 "2025-02-12T18:16:10Z")
I’ve been scratching my head trying to figure out how i should create my overworld map i’ve thought about using a matrix of strings for each point I’ve tried tilemaps but im just unsure whats the best way to do it Some… --- ## [Code buggy help please](https://forum.makecode.com/t/code-buggy-help-please/33678)
**Author:** [@Dodec](https://forum.makecode.com/u/Dodec)\ **Replies:** 5\ **Last updated:** [February 12, 2025, 6:55am UTC](https://forum.makecode.com/t/code-buggy-help-please/33678 "2025-02-12T06:55:07Z")
when I try to edit tilemap or do anything it bugs and does not let me code or edit and thinks I’m dragging it --- ## [How to copy and paste projects?](https://forum.makecode.com/t/how-to-copy-and-paste-projects/33797)
**Author:** [@AWFLUFF](https://forum.makecode.com/u/AWFLUFF)\ **Replies:** 1\ **Last updated:** [February 11, 2025, 11:34pm UTC](https://forum.makecode.com/t/how-to-copy-and-paste-projects/33797 "2025-02-11T23:34:20Z")
I’m trying to make a seperate 2 player version of my game but i can’t find any way to copy and paste the code. Does anybody have a solution to this? --- ## [Really weird error](https://forum.makecode.com/t/really-weird-error/33713)
**Author:** [@BotWarrior](https://forum.makecode.com/u/BotWarrior)\ **Replies:** 11\ **Last updated:** [February 11, 2025, 7:54pm UTC](https://forum.makecode.com/t/really-weird-error/33713 "2025-02-11T19:54:53Z")
So I was working on my hollow knight game and I found out that you could CHANGE THE AMOUNT OF PIXELS ON THE SCREEN!!! I tried integrating it but can’t go back to blocks. I have tested this on another project- very blan… --- ## [How to make sprite not move diagonally](https://forum.makecode.com/t/how-to-make-sprite-not-move-diagonally/33604)
**Author:** [@ItzWolfeel](https://forum.makecode.com/u/ItzWolfeel)\ **Replies:** 2\ **Last updated:** [February 11, 2025, 6:12pm UTC](https://forum.makecode.com/t/how-to-make-sprite-not-move-diagonally/33604 "2025-02-11T18:12:15Z")
I’m trying to use the “Move sprite with buttons” and I need a way to not make it move diagonally, I tried the Grid extension but the “Move sprite on grid” Doesn’t work at all. Any ideas? --- ## [While Loop](https://forum.makecode.com/t/while-loop/33769)
**Author:** [@Mlabrenz](https://forum.makecode.com/u/Mlabrenz)\ **Replies:** 1\ **Last updated:** [February 10, 2025, 6:56pm UTC](https://forum.makecode.com/t/while-loop/33769 "2025-02-10T18:56:43Z")
Hi! One of my students is trying to use a while loop under the “on A button pressed” event handler. When the condition countdown \> 0 is true, he wants the camera to shake. When he adds in the loop and presses the A butto… --- ## [For a rhythm game](https://forum.makecode.com/t/for-a-rhythm-game/33645)
**Author:** [@Justasmallcoder](https://forum.makecode.com/u/Justasmallcoder)\ **Replies:** 7\ **Last updated:** [February 10, 2025, 6:47pm UTC](https://forum.makecode.com/t/for-a-rhythm-game/33645 "2025-02-10T18:47:06Z")
Can someone please make an extension for rhythm games? One that is easy to modify and understand? --- ## [Bot Implimentation](https://forum.makecode.com/t/bot-implimentation/33673)
**Author:** [@NeurodivergentMuppet](https://forum.makecode.com/u/NeurodivergentMuppet)\ **Replies:** 3\ **Last updated:** [February 10, 2025, 6:41pm UTC](https://forum.makecode.com/t/bot-implimentation/33673 "2025-02-10T18:41:52Z")
Any idea how i could put a bot on this site? @richard, is it possible? --- ## [How do I make objects ignore walls?](https://forum.makecode.com/t/how-do-i-make-objects-ignore-walls/33759)
**Author:** [@Wally](https://forum.makecode.com/u/Wally)\ **Replies:** 2\ **Last updated:** [February 10, 2025, 6:38pm UTC](https://forum.makecode.com/t/how-do-i-make-objects-ignore-walls/33759 "2025-02-10T18:38:07Z")
I am making a platformer game with enemies, and one of those enemies is a ghost. I want to make said ghost ignore walls while not destroying them. Is there a way to make its so the ghost ignores walls and passes through … --- ## [WarioWare-style game?](https://forum.makecode.com/t/warioware-style-game/33757)
**Author:** [@Wally](https://forum.makecode.com/u/Wally)\ **Replies:** 1\ **Last updated:** [February 10, 2025, 6:08pm UTC](https://forum.makecode.com/t/warioware-style-game/33757 "2025-02-10T18:08:06Z")
Is it possible to make a game like WarioWare on Arcade? --- ## [Help with Music (Glitch?)](https://forum.makecode.com/t/help-with-music-glitch/33700)
**Author:** [@Skittlesaersuper](https://forum.makecode.com/u/Skittlesaersuper)\ **Replies:** 1\ **Last updated:** [February 9, 2025, 4:13am UTC](https://forum.makecode.com/t/help-with-music-glitch/33700 "2025-02-09T04:13:45Z")
I’m making a game that has a cool theme song B) But I can’t find the blocks for making a direct song, instead I find the tone and key blocks instead of the song maker. Did they remove this? --- ## [What should my next game be?](https://forum.makecode.com/t/what-should-my-next-game-be/33677)
**Author:** [@platformermaster](https://forum.makecode.com/u/platformermaster)\ **Replies:** 6\ **Last updated:** [February 9, 2025, 12:13am UTC](https://forum.makecode.com/t/what-should-my-next-game-be/33677 "2025-02-09T00:13:37Z")
I need to know what my next game should be! Be specific! [Previous page](https://forum.makecode.com/c/share-your-arcade-projects-here/help/14.md?page=48) [Next page](https://forum.makecode.com/c/share-your-arcade-projects-here/help/14.md?page=50)