Hi Ɓrainfreze! Below I've provided two methods to extract sprites from the game. Oh, and a quick tip, I recommend using the "For PC" method, as it's a lot simpler.
For Android: I recommend using
Apk Extractor, which allows you to extract an APK file (the thing that Android uses to install applications) of the game directly from your device. APK files are usually just ZIP files, and this stands true for Soda Dungeon. So, this allows you to rename the file
<Whateverfilename>.apk to
<Whateverfilename>.zip. Then, simply unzip the file and go through the contents of the game (psssst; the sprite files you're looking for are in the /assets/img/ directory).
For PC: There's no need to do anything special to the game files, simply get the game from a market like
Steam (and it's free!). Then, navigate to wherever you installed the game (if you leave it default on Windows, it can be found in this directory: C:\Program Files (x86)\Steam\steamapps\common\Soda Dungeon) and look in the 'img' directory for your sprites.
Hope this helps, cheers!