So this is for the people who are maybe new to the jail-breaking scene and aren't quite sure how to hack certain games. Below will include how to use XModGames. Enjoy!

To start off, games that cannot be modded:



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XmodGames:

How To:

First you must go to cydia and add this repo: repo.hackyouriphone.org/
Once the source has been added you will need to search for 'XModGames' and then install.
Now that you have the application here's how to modify apps.

Step one:
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Click on the application as shown in the picture.

Step two:
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Click the button at the bottom labelled 'Mod'

Step three:
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Click on the application you would like to modify, for example Clash of Clans.

Step Four:
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Click the install button at the bottom and wait for it to install. And that's it all you have to do is click launch from within the XModGames application and a small robot will appear somewhere on the screen inside the application. From here you can alter in game setting and other things. Disclaimer, applications vary in regards to what you can modify.

(Updating with GameGem in the next hour)