I can confirm the neon green in Combat, so we end up playing in B/W. Same thing for Indy 500 which was just unplayable with SECAM colors!
Don't know why we kept playing Dodge'em with the green background
My brother and I never get shocked about all those bright colors, except when we saw a green smurf (see attached picture).
At some point, there may have been a kind of auto-switch to NTSC with newer compatible TV because I don't remember the SECAM colors for games like Jungle Hunt, River Raid, Pole Position, Realsports Volleyball, Pele's Soccer and Defender. I mean I remember them with the "right" NTSC colors in my memory.
Funnily enough, I still prefer the SECAM colors for Galaxian (try it!) and Yar's Revenge.