Weltmeister

I am not sure if I want to sell it. Just bought it. I paid about 12 $ for the 8 in 1. The other 3 I paid 16 $ for.

Found this games. Superman, Inca Gold and plug attack. A cartridge with 8 games, boxing, cowboy, autolaw, arlsee battle, freeway, tennis, fishing durbi and commbet. They look a bit like pirate ? Who have made this ? Funny spelling on some games. Are they rare ?