Weird SMS Black Belt cartridge

[Retronplay]

I have a copy of Black Belt for the Sega Master System. Sometimes when I turn it on, Black Belt shows up, like normal. Other times though, the Hang On & Safari Hunt combo shows up. It doesn't seem to have a pattern. It's just random. Does anyone know why it does this?

[ferraroso]

I believe it has more to do with your console than with your cartridge.
The first models of Master System had Hang-On and Safari Hunt as built-in games. So, if the cartridge is not properly inserted, the console will usually play the games that are already in it, right?

Hope this helps you.

[Retronplay]

Thanks. Just tested SMS without Black Belt, and the combo cartridge showed up.

[ghostsweeper]

Depending on the model, some people had Snail Maze built in.
The SMS II usually has the classic Alex Kidd in Miracle World. I believe later models had Sonic 1.