The thing with this model is that I'd built it waaay before I discovered subframe technology. It's so different from ... I don't even know what to call this, classic ray technology? ... So it's so different from the tech used in this model that it'd probably take ages to get back into it. I think I'm not going to work on Ray162K anymore.
So much for the bad news though. Keep tuned, because I'm going to bring something new to the table using the subframe technology I mentioned earlier. And believe me, I'm definitely going to build a math coprocessor for that.
Someone write a snake game for this computer. R216K2A and R16K1S60 have snake, but Ray162K does not.
https://powdertoy.co.uk/Browse/View.html?ID=2920545
https://powdertoy.co.uk/Browse/View.html?ID=2067131
And if it can't be done, then write some program that would use all the instructions to maximize the load on the computer, so that it calculates something for a very long time, using all its components to the maximum. It would be good for demonstration. In general, for every such interesting computer, you should write a demonstration game or a complex computational program to show the computer's capabilities visually. I would write one myself, but I don't know how to program.