Godzilla Kaiju Collection (Android Unity Game)

[MasterMinya]

I'm having a slight problem with extracting the sprites from an Android Unity game. There's an Android game called "Godzilla Kaiju Collection" and extraction works fine, for the most part. However, I'm trying to extract the character sprites from the game which I believe are located in random files without extensions. However, extracting these files leave me with either a completely transparent image file (Unity Assets Explorer) or a Grey/White image (Disunity and Unity Studio).

So far I've only successfully ripped one kaiju which was contained in a SharedAssets file and not the random files without extensions.

Any clue how I can extract these sprites?

Here are the files: http://www.mediafire.com/download/1jx73 ... KCData.rar