The Game: You control a dot making its way through a twisty maze with two exits – one right behind you and one across the screen from you. The computer also controls a dot which immediately begins working its way toward the exit behind you. The game is simple: you have to guide your dot through the maze to the opposite exit before the computer does the same. If the computer wins twice, the game is over. (Midway, 1976)
Memories: Not, strictly speaking, the first maze game, Midway’s early B&W arcade entry The Amazing Maze Game bears a strong resemblence to that first game, which was Atari’s Gotcha. Gotcha was almost identical, except that its joystick controllers were topped by pink rubber domes, leading to Gotcha being nicknamed “the boob game.” Amazing Maze was just a little bit more austere by comparison.
The Game: Up to four players control markers that leave a solid “wall” in their wake. The object of the game is to trap the other players by building a wall around them that they can’t avoid crashing into – or forcing them to crash into their own walls. Run into a wall, either your own or someone else’s, ends your turn and erases your trail from the screen (potentially eliminating an obstacle for the remaining players). The player still standing at the end of the round wins. (Ramtek, 1976)
The Game: Two players control one car each, careening freely around an arena filled with zombies. Faced with zombie-fication at the pedestrian crossing of the undead, the drivers have only one option: run over their opponents! Each zombie that’s squashed leaves a grave marker behind that becomes an unmovable obstacle to zombies and cars alike. Whoever has run over the most zombies by the end of the timed game wins. (Exidy, 1976)
With the same trio of games as the Odyssey 400 – Tennis, Hockey/Soccer and Smash – the Odyssey 500, released in 1976 by Magnavox, would appear to not be much of an upgrade, but in fact, it’s an absolutely critical turning point for home video games: the Odyssey 500 did away with squares and rectangles to represent the player, and introduced character sprites – hardware-generated characters that roughly mimicked the shape of a human being. 
The Game: Activated by leaving a cartridge out of the slot, powering the system up and pressing one of the selector keys, Tennis and Hockey are built into the system. Timed games can be selected, and the traditional rules of each sport apply. (Fairchild, 1976)
After the baffling backward step of the Odyssey 400, Magnavox’s Odyssey 2000 saw a return to the Pong-inspired, single-paddle control scheme, with digital scoring restored as well – Magnavox had decided to rest the Brown Box design (and the subsequent variations on it) permanently in favor of, once again, the General Instruments AY-3-8500 “Pong on a chip” processor. Packaged in a red casing, this would be the last anyone would see of the smoothly rounded-off, integrated Odyssey console. The next system to bear the name would return to its roots – with wired controllers that weren’t necessarily stuck to the main console – and look forward, with a futuristic new design that stands up even today. 
It adds nothing to the Odyssey 2000’s “four action-packed video games,” but the Odyssey 3000 is a quantum leap in the design aesthetic of the console itself. Finally breaking away from the basic casing design that had been in place since the Odyssey 100, Odyssey 3000 packs four games (well, really just three plus a Tennis “practice mode”) into a sleek, futuristic-looking black wedge with highlights that almost anticipate – believe it or not – the look of the computer screens in Star Trek: The Next Generation (though to be more realistic, it may have been influenced by the design line of Atari’s Fuji logo). The controllers are detachable but hardwired, and nestle snugly into the console itself.