Trying some bch real time app with bitsocket : http://snakebch.ml (a quick on chain game I just made)
The latency is soooooo high, transactions takes seconds; so it's impossible to do real time app on bch right now
I wanted to try playing your game but wasn't sure what to do. I tried inputting a private key with a 5000 satoshi balance but nothing happened.
Hmm, are you using a modern browser ? I just retried (i'm using firefox) and it worked Can you try and see if when you play transaction are sent ? (Click on the "Please see here" link)
You can try to press F12 to open the "dev panel" and see if there is some errors (if so post them) : the "sending ..." is when you do a transaction, and so on
Once the private key is enter you can play the game with the arrows of your keyboard. Maybe make sure to click on the game to it "gets the focus". I know it's not really user friendly
I just retried, and it failed, bitsocket seems broken for me For your question, I'm not an expert of all these details but this issue is for public key, but maybe it's the raw vs WIF
I'll try later with paper wallet from bitcoin.com see if it's work, or try to give a private key, it may be a fun challenge to try to encrypt it with your public key (if it's possible)