Hmm, seems like it would be hit and miss. There was no real way to reset from the cart port, so when one hit the button, you would just start running the other game ROM!

I bet some amazing glitches were possible!

By glitches, I mean things like the double shot in space invaders when powered up with reset held down.

So many games depended on a given CPU state. Random starting them would be very interesting.

Finally, some may not work properly depending on their banking scheme and where the rando start happened.

...or am I misunderstanding how it worked?