Hi. I posted here some time ago and I found a solution. Please could please anyone, who played at least the first 11 levels in story mode upload his "saves" folder, which is located in
/users/<yourname>/My Documents/My Games/creeperworld4/
and upload it
HERE (https://drive.google.com/drive/folders/1dQz2kR5lmtXlXEcpPkNzm90_b52RHOAD?usp=sharing)
(if you do not have google account, then please tell me and I will find another solution)
Thank you very much.