is that only for the patreon version
Viewing post in Third Crisis (Free Version) comments
You literally replied to the answer of your question c:
You can read exactly that here https://anduogames.wordpress.com/2018/05/03/guide-to-the-console-in-third-crisis/
And yeah you can use the console in itch. Enable it in the menu and open it with f2. Is there anything unclear in the link?