Good morning, Imre.
Please allow a question here (sorry, I do not have a mail address):
We have report about the "AMOS Professional Unity" project which is an improved AMOS with, among others, AGA support:
https://www.amiga-news.de/en/news/AN-2023-08-00029-EN.html
What is absolutely missing is a little game or demo just like you did here, which demonstrates the possibilities of it.
Since you are programming in AMOS, would you be interested to have a look at it?
You can also contact me under daniel@amiga-news.de
Thanks!