Three different versions Press #1 key for version using Pen blocks and Transparency effect Press #2 or #3 key for version using Sprites and Ghost Effect Press Space then a different # to see each one
Thanks to https://scratch.mit.edu/users/papipupepappa/ for project https://scratch.mit.edu/projects/753428766/ with the pen & transparency blocks coding idea! Original Project was Made for Scratchtober 2022 day 14: Colorful https://scratch.mit.edu/studios/32248580
