Where's the interactive portfolio? Sure, the images help but that's not really assuring. You can have the frameworks of a product but not actually develop any of it: pretending that a jpeg showcases a working game is way easier than coding a real one.
And this should be posted publicly, not solely disclosed to people who will/are in contact with you
Their reviews on their site are fake, too. They even spelled the same word wrong in the review that they did all over the rest which makes it obvious...
If you are providing script for that low prices, than I am quite sure you will give a buggy script or script with backdoor so that you can empty casino hot wallet when it will have some good amount of bitcoin.