Access javascript methods [closed]

I have an object with hundreds of functions, variables… From all of these only two are accessible and these start with this ex: this.methodName().

Is there a way to access the other methods using prototype? I see all the methods in Scopes[1] 0: Global

Here is the code:
https://gist.github.com/zamanuhina/74e636d705e5fe8a010e21550cf5e657

function Playerjs(options) {} creates an object and I want to be able to access other methods in this function.