Fix 'Duplicate Code' issue in multiple files

[CodeFactor](https://www.codefactor.io/repository/github/ericborges2019/python-games/overview/master) found an issue: Duplicate Code

It's currently on:
[game.py:1-17
](https://www.codefactor.io/repository/github/ericborges2019/python-games/source/master/game.py#L1)[guess.py:1-17
](https://www.codefactor.io/repository/github/ericborges2019/python-games/source/master/guess.py#L1)