Read the info in the thumbnail before hitting the green flag - probably best in full screen! I was going to hide this away in my test account as it's only a tiny project, isn't much "fun" and is likely to get nothing but "what?" comments. Then I decided that it might entertain Scratchers who have an interest in such things (and it's also quite useful to know). I do have the solution but I'm not going to share it... ...yet :)
The following were the first to complete it successfully. I can't reply to all the messages so I'll make a project to show the explanation when I have some time... 1) @colinmacc 2) @AmazingMech2418 3) @imfh 4) @FireHorse27 5) @kriblo (probably earlier but he forget to tell me) #techdemo #tutorials #description(An interesting challenge for you to solve - see how well you know the Scratch threading system...)