Atari game console - Atari 2600 (a2600)

Take control of a tank in enemy territory. As you navigate columns and rows, you'll need to avoid collision with enemy tanks while you blast them to smithereens. Catch a bonus while on the hunt for some extra points and a little respite from the fast paced action. The more tanks you take, the more furious the enemy will be after you. There are four difficulty levels and the ability for two players to play competitively, each taking their turn.

Unknown Activision 2 - This product was published by Activision in 1984.

Found in a junkyard in 1998 by Ben Lyashenko, the identity of this enigmatic Activision prototype has eluded collectors for years. This prototype plays like a cross between a Rubik's Cube and an old tile sliding puzzle game. The goal of the game is to line up all the colors in each row from light to dark. If you did everything right the tip should look like the start screen with colors going from red to purple. However lining all colors is easier said than done due to the unique way the squares move in all directions.

Along with the unknown in Unknown Game #1, this mysterious prototype was found in a junkyard in 1998 by Ben Lyashenko. With the label that once existed on this game long gone, we don't know what the identity of this game might be. In this game, you will control a small alien who must use the blocks at the bottom of the screen to build a tower and escape. Like rolling off the assembly line, you have to jump up and pick them up so that they are somewhere on the screen. Once you have built a nice little tower, you must carefully jump on the conveyor belt and then climb the tower to the next screen.

Unknown Universal is a racing game. You have to drive the car on the track. The game is designed for one player.

Up 'n Down is a Racing video game developed and published by Sega. It was first released in 1983 as an arcade game, later ported to the Atari 2600 and game consoles and the Atari Xe and Commodore 64 home computer. Up 'n Down is a vertically scrolling game that uses a pseudo-3D perspective. In the game, the player controls a purple buggy that resembles a Volkswagen Beetle. The buggy moves forward along a single lane track; Pressing up or down on the joystick causes the buggy to speed up or slow down, pressing the right or left causes the buggy to change lanes at an intersection, and pressing the "jump" button causes the buggy to jump in the air.