There are many bugs in the Scratch Tag Demo, which is here. https://scratch.mit.edu/projects/961089422 Put how to fix the bugs here and hopefully, you can make scratch tag a better game!

define congratulate the helpers!
say [Thanks for helping!]

Making Getting Over It (2D Gorilla Tag is way too similar to Getting Over It.) physics on Scratch is very complicated. You can use this project to get started or if you want more compact code, you can use this.