My favorite Atari 2600 console video game is Adventure. I played that thing for hours. The main character is a small square. You move the square slowly around the 2-D board with the joystick. The goal is to locate three keys in three different castles, avoiding the “dragon” (or giant duck, seahorse, whatever) and picking up other objects on your way to capturing the gold chalice. For some reason it took me a long time to beat this game. Maybe because I was ten and it was Atari.
Here, our hero attacks the “dragon” with a “sword”:

Get the key! Before the “dragon” eats you!

Good times.

THIS GAME ROCKED SO HARD.
IT TOTALLY DID!!
I guess after Adventure I liked Defender and maybe Breakout, but they paled in comparison. PALED.
Haunted House was kind of cool in a similar vein. One of my very favorites was Indy 500 (duh), but it required special controllers. But that’show I learned to drive on ice!
AND MAZE CRAZE. That game was cool.
Oh man, Adventure. GREAT GAME.
I lurved my 2600 SO MUCH. Good times.
I remember if you used the “bridge” the wrong way, you could get stuck in a wall.
Also there was the secret Easter Egg, where you go to one place in a maze and get a little dot, which lets you go into a secret room with the words “Created by Warren Robbinette.”