Hi!
Did'n registier until yesterday so here comes a tip that should been delivered some month ago
http://www.ganheden.com/collection/4_pong/..._01_console.htm
This one is a swedish version that runs these cartridges, it seems to be a Teleng Colourstar clone according to the info i found
http://www.ganheden.com/collection/4_pong/..._stuntcycle.htm
That´s the item in question and it runs just fine on the hardware in the first link.
http://www.ganheden.com/collection/4_pong/..._indepth_00.htm
Did a homeautopsy to ...
Best Regards