The Select-a-Game uses a 7 x 16 vacuum fluorescent display (VFD) array of large dots as the main display.^[1] It can display two colors, red and blue. These are combined with static overlays for each game. Together they make up the display. The system is basically a display and controller for the games with no built-in processor power. Each game cartridge contains a microprocessor programmed with the appropriate game code in it. In this respect, it is very similar to the concept of Milton Bradley's Microvision system released a few years earlier.

The system can be powered by four C batteries, or by an external A/C power supply. The power supply was only available by mail-order.

The games released for the system are:

• Space Invader 2
• Basketball 3
• Football 4
• Pinball
• Baseball 4
• Pacman 2
• Battleship (not released)
• Turtles (not released)

Space Invader 2 came with the system. In late 1981, Entex was sued by Coleco, which held the licensing rights to handheld versions of Pac-Man at the time, for copyright infringement over their upcoming release of Pacman 2. The game was pulled shortly after release as part of the settlement. Because of this, Pacman 2 is the rarest game released for the system. The game cartridges play very similar to their hand held counterparts (Entex made quite a few hand held games such as Space Invader 2, Basketball 3, Pacman 2, etc.).