Yeah, by not getting caught by them :D
MiniBoss battles are unavoidable thou~
No, not really. WIN version has huge exe file inside (its auto installer).
Universal version should have already pre-installed batch of files inside, if you unpack it, you should see inside Jar, exe and bat files. All three should be able to lauch the game.
How is your game folder looks like after unpacking, can you attach a screenshot?
Errrr you dont use Java to download games.
Java is environment / language necessary to launch.
You can get latest here
https://www.java.com/en/download/
After install you need to manually download game package from Itch and run the game .exe file.