What do you mean ? Axel flies is a unique game made in Javascript running in exaequOS, a Unix like operating system running in your web browser
Ah, found it. I expected it to be on the list shown when you first boot exaequOS, but you had to search for it, and be patient for the search results to appear. Never heard of or used exaequOS before, sorry, so wasn't sure what I was looking at.
Good ! You can start it from itch as well. It will automatically start exaequOS and load the game