I have just shared the demo project here: https://samadibeligaswatte1.itch.io/bloons-td-5-demo Oct 5 26: v3 adds mastery mode, 35 special missions, 24 soundtracks and cross platform support! Sept 14 26: I’ve just updated the project, now there are 294 maps instead of just 30. I recommend downloading the zip file it loads several times faster.
I can make a scratch project version but it would only contain about 10 towers, play my bloons tower defense 4 and expansion projects instead: BTD4: https://scratch.mit.edu/projects/1022432719/ BTD4E: https://scratch.mit.edu/projects/1314108543