Friend of the site Bence Dobos pointed me to this. First of all I had no idea the TI-83 could do things this nice now-a-days. Secondly, this may be even better than ASCIIpOrtal:
It could use scrolling screens and the portal view I used in ASCIIpOrtal. And color. And sound. But this demonstrates the amazing things happening on the TI Calculators, still very much the tinkerer’s playground.