Thank you so much for the in-depth feedback. Can you explain more about number 2?
"2. The icons for which options you have chosen are not displayed (that is, you press the keys which options you have chosen but it does not tell you what they are)."
Does this mean the rock, paper, scissor icons does not show when you press Q, W, E? Because the icons should change from first right icon to last left icon whenever you input Q/W/E. The key R will give "?" which is random. Otherwise, it might be a bug I need to investigate.
Also the AI (blue player) will always show 5 "?" as it will only random pick a symbol.