Why is Commando, Ikari, and Scrapyard dog greenish colors

I recently got back into 7800 gaming and I managed to pick up a bunch of games. However I noticed that Commando, Scrapyard dog, and Ikari worries show different colors in game than on the back of the box. For example in Commando and Ikari warriors the ground is Green instead of the tan/brown color. Another example is in the first level of Scrapyard dog the fence is green vs red/brown and the character is purple

I tried two different 7800's on 3 different TV's, (plasma, led, lcd) I no longer have a CRT so not sure if that's the culprit or not.

Im pretty sure these are all NTSC games but I cant be 100% sure