Which Design pattern would best suit in this problem?

I am working on an open-source project and trying to refactor the current codebase. I am stuck in a place where I know the code is not well written, but I am not sure how to fix it.

I have Game.java which expects user input through Scanner with 10 different options to play the game. Options look something like this:

• Going to Battle
• Using First Aid
• Going to Town
• Go to Home .....e.t.c

I have already converted these options to enum and now switch case is for enum GameOptions.

My Confusion is:

Some of these options have a

• nested switch case,
• some of these call other static methods from another class,
• some options call another method in Game.java itself.

I am not sure how to best refactor this code.

For reference to code: https://github.com/SaurabhKukreja/Text-Fighter/blob/master/src/com/hotmail/kalebmarc/textfighter/main/Game.java#L154