KO appearing on the PO-20 screen

Does anyone know what the KO on the display stands for?

Knockout. As far as I know, just a little fun graphic.


appears when you don’t press anything for a few seconds.
“KO”! (knockout) — game over!
“INSERT COIN” to continue!
:stuck_out_tongue:

yip, pretty cool… i’m guessing it’s just before it goes to sleep mode