I got my first Atari 2600 around Christmastime in 1999. It didn't come with any games but a friend from my boy scout troop had some games and paddles that he brought over when we had a troop meeting at our house, which we played downstairs afterward. The games were Combat, Pac-Man, Donkey Kong, Space Invaders (red label), Breakout, Super Breakout, M*A*S*H*, Chopper Command, and Warlords. I fired up Combat first since I wanted to replicate the "new 2600 experience" as closely as I could, as Combat was most people's introduction to the system. It didn't disappoint! Pac-Man was something of a hit as well. Surprisingly, I don't recall Warlords getting that much traction with the other kids, even though there were four or five of us.
He let me borrow the stuff but we grew apart as we got into high school and I got out of scouting, and it was forgotten about. I still have most of them, except the Space Invaders and Donkey Kong carts (the end label was ripped off anyway), which I reacquired. I have no way to tell which of my umpteen Combat carts is my "original" one, though, unfortunately...but it's one of them!