No sprites or original image files are included, any customisation requires external license for Construct3 which is not mentioned anywhere.
Author response
Good morning my friend how are you?
When opening the game in developer mode, where I send the .c3p file
The game images are already included.
Do you need the game images in another folder? if you need, send me an email informing which game you bought that I send to you.
email: fabrizioabreu@live.com
I mention in the description of the game, what is the tool I use for development, which in this case is Construct3