2600 Jr. controller port issues w M-Network Titles?

Hello all, I'm having controller issues w/ some M Network titles on the Jr.

Dark Cavern, Trons adventure, Trons Deadly Discs, and Kool aid Man.

They all go up but cannot go in any other direction..All my other games work great, so I know it's not the controller port.

Also, those titles work great on my 7800, heavy 6er, light 6er, etc...

Anyone else have this issue?

Thanks all..